Not my craziest or freakiest but an interesting one.

I picked a fight with my husband and then felt guilty. So I wrote "I'm sorry, I love you" in pink hair dye on the bathroom mirror. He didn't find it until after he got out of the shower. By then it had turned red and ran down the mirror. It took him a little to realize it wasn't blood. So now in in the master bedroom the next tenants will have a 4'x6' pink stain of " I'm sorry, I love you" in their bathroom mirror.