Has Another Player’s PC “ruined” the Tone of a Game for you?

[Taevyr]

The campaign I'm currently playing in has a bit more "sitcom" in it than most of the party was hoping for, mostly due to a single player leaning too hard into the randomness of wild magic, and another player consistently overreacting to it. Currently, we've reached a point where I either have to play team dad & break'em up, or the DM calls a time-out to ask the sorc to tone it down a bit, about once a session.

I don't really know how to feel about it: we're all friends and the campaign isn't in any danger of breaking up soon, but it is getting somewhat annoying and he doesn't fully seem to realize it. Especially since he's admitted himself he doesn't know how to rp the character differently, and making him roll up a new character seems rather harsh.