lol! i dunno... its been seven years and i still haven't figured it out...
my willy BIT my head the other day... i deserved it though. i was head butting him (very gently) in the belly and it pissed him off. he's very touchy.
i realized that if i did lock my bedroom door they'd claw underneath it and ruin the carpet.
i wish i could help.
or you could wear a helmet to bed! bahahahaaa!!!