My Dad, when we get a takeaway. Conversation around the table will be flowing nicely, until he decides to offer his left overs to everyone.
"Who wants some of my chicken?" "Look, I've got chicken left"
Whoever was talking, has to stop mid sentence, to allow everyone to say "no thanks".
Conversation resumes, then 1 minute later, Dad asks every person individually, whether they want his left overs, so that could be him asking 6 different people, and when they say no thanks, he persists with "go on, have some" and "don't be a wimp" or "you're a let down", on and on it goes, so you just have to stop having a conversation altogether.
Half the time it's non sensical anyway, for eg. he will offer you his chips, even though you have half of your own left. Other times, what he's offering you is nothing you'd want, like the left over teaspoon of juice from his curry.
Every. Single. Time.