Silverfish Prank Made Friend Quit SMP

Am I the jerk for "pranking" my friend so hard he actually quit our private SMP?

So, I have this friend, let’s call him Kyle. Kyle is one of those "technical" Minecraft

players. He spent three weeks building this insane guardian farm and a massive Japanese-style

pagoda over the ocean. It looked incredible, but he’s super protective of it.

I thought it would be funny to play a "ghost" prank. You know, move a few chests,

replace some lanterns with redstone torches—light stuff. But then I got the "brilliant" idea

to hide a Silverfish spawner under his floor. I thought it would just be a minor

annoyance for him to clean up. Well, I didn't realize Kyle had used a