Friend's TNT prank nearly destroyed my base

Okay, Reddit, I need to know if I'm overreacting, or if my "friend"

needs to be sent to the Nether. We're playing on a private server, just me and 'Kevin'.

We've been building for months, everything's chill... until last night. I log on,

ready to farm some ancient debris, and immediately something feels... off.

My bed isn't there. I figure, whatever, Kevin moved it. Annoying,

but he's probably building some new extension. I craft a new bed, place it down...

and then I see it. Kevin didn't just move my bed. He didn't just break it.

He replaced it... with a bed... on top of a single block of LIT TNT. I saw the red glow