Remus in an important teacher meeting (a parent teacher conference or something like that) and he forgot to turn off his notification sound:
Remus: So, as I was just saying, your son is really-
Remus, blushing (because he normally turns it off and its super embarrassing for him): I'm so-
Phone: ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding
Remus *looking hastily for his phone*: ...sorry
Phone: ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding
Remus: I am so sorry, I put in on silent mode now. Well, your-
Person 2: Don't worry, it's fine, trust me. Do you want to go out for a second to look at those messages? I'm sure it's something important if someone texts you that often.
Remus *still embarrassed*: Yeah, yeah, I think that's for best, thank you.
Remus *outside, in front of the door, opens notification app*