The Burn Notice pilot spackle nobody asked for
There are various moments in the BN pilot that in retrospect seem to be OOC. Like Michael begging Lucy for work by acting like a dog, a ridiculously playful side of him that we never see again.
And obviously those moments happened because Matt Nix hadn't figured out quite who the characters were yet, but as fans we're left to come up with Watsonian answers for them. In the case of Michael and Lucy, the BN podcasters explain it away as a Lucy-specific in-joke - they met years ago not long after Michael joined the army, still a teenager, and that act is a hangover from when they were silly kids together, which is a headcanon I cheerfully accept.
At least that odd scene with Michael is harmless. In the case of Fiona and Sam, there are scenes in the pilot that come across as character assassination. So here I go, wading in...
With Fiona, there's the infamous, "Shall we shoot them?" that appears in every opening credit. Fiona's a violent criminal who hates cops, yes - but she's also smart. Way too smart to think shooting three FBI agents in the street is a good move. Suggesting it makes her seem like a brain-dead, trigger-happy lunatic. So why does she say it?
Fiona doesn't really know Michael Westen at this point. The man she knew was Michael McBride, the IRA sympathiser. Michael himself says in season two (with his Irish accent back in place) that Fiona and Michael McBride 'caused a lot of mayhem'. We don't know what the CIA wanted Michael to find out in Ireland, but whatever it was, Michael would have been very interested in Fiona talking about her work. Would have encouraged her to give him all the details about it. Wanted to help out with her work in any way he could. Fi knows Michael as someone who's really into her violent side, who thinks it's amazing and fun and hot when she's showing him weapons stores and blowing things up.
So when she's trying to wriggle her way back into Michael's life and into his bed, she plays up that side of herself. She beats up Sugar's hitman outside the loft and expects that seeing her do that will make Michael horny. And she suggests shooting multiple FBI agents, not because she plans to actually do it, but because she thinks hearing her say it will make Michael hot for her, remind him of everything he always liked about her.
And then there's Sam. When Sam meets up with Michael, he's openly leering at a random woman who's just walking past in the street minding her own business, and he's making vile comments. Sam's a flirt, not a creep! There's a difference. But here the audience is introduced to Sam and he immediately comes across as the nastiest kind of sleazebag. What is going on?
Sam's meeting up with Michael, who's just been burned. Michael's been unceremoniously kicked out on his arse and he's angry, frustrated, depressed. It's exactly the same thing that happened to Sam two years earlier.
Sam can't sit there and tell Michael that being fired from the job he loved and was incredibly good at is the worst thing that ever happened to him. That he's bored out of his mind and drinking too much and eating too much and having lots of casual sex because there's nothing else for him to do. That he takes on an occasional job for Lucy when he needs cash, but he doesn't even do that much because Lucy doesn't know if she can trust him any more, and the jobs she offers him are so far below his skill level it's positively depressing.
Sam needs to tell Michael that life after your career's ripped away from you is fine! That he can have fun! That the world is his oyster! And Michael knows Sam as a flirt, someone who enjoys sex and booze between missions, so Sam lays it on extra thick, tells him how great it all is, how you can pick up hot women in bikinis everywhere you go.
Both Fiona and Sam are putting on a performance for Michael in the pilot - they're dialing one aspect of themselves up to eleven, in the hope of eliciting a particular response in Michael. And that's why they both come across as not quite themselves.