Hello! How do you suppose Underswap Papyrus and Undertale Sans would react to a really skittish human that dislikes being pranked so much they cry about it?
Whoa, hey, kid. Calm down, he didn’t mean to rattle your bones so bad. It was just a hand-buzzer, no harm done, see? He tries a couple more times to play little jokes on you, each to lessening degrees of shock, only to come to the same conclusion each time: you don’t like tricks. It’s a shame, he lives for slapstick. He’s kind of disappointed, but he learns to dial down the pranks around you.
Well, he’s unsure if you can be friends. After all, what kind of reasonable human doesn’t like japes?? He’s just kidding, Chara doesn’t like japes very much either. It’s no skin off his back, he’s got a lot more than pranks to offer. Like puzzles, for instance. He promises there’s no strings attached, he had Sans remove all the nasty “Guard” stuff. He’s always trying to find a workaround to your fear, & will remove the presence of any & all “trickster” objects in the area the moment you step on to the scene. What a good friend.