no, but i use to go under my little sister's bed and make growling noises. and she'd be like stop that (not knowing who or what it is). eventually i'd say it was me so she wouldnt get scared or traumatized
I'd say I did when I was younger, but I had a bunk bed so I don't think that counts. I did find my baby sister under there a few times though, if that counts? I can't check now because there is no under part :c though I guess that means I'm safe!