hey there!
it actually happens in japan. there are a lot of crimes regarding cum on doors, cum filled envelopes, etc. it's pretty weird.
remember the manga "Akuma to Keiyaku" where that creepy stalker sent a used dildo covered in cum to the actor? shit happens in japan ┑( ̄Д  ̄)┍
pretty realistic if you ask me.
http://www.mangago.zone/read-manga/akuma_de_keiyaku_haru/
Oh! So sorry! It's from the raws. It seems that part hasn't been translated yet!
Here's the link if you want to download it!
http://13dl.net/%E3%83%8F%E3%83%AB-%E3%82%A2%E3%82%AF%E3%83%9E%E3%81%A8%E5%A5%91%E7%B4%84%EF%BD%9E%E5%BD%BC%E3%81%AE%E3%82%A4%E3%82%B8%E3%83%AF%E3%83%AB%E3%81%AA%E6%84%9B%E3%81%97%E6%96%B9%EF%BD%9E.html
This fucking creepy lizard!!...i mean why didn't he invite him out, be friends and then confess...& i don't understand what's so erotic about licking & cumming on a fucking door....i can't imagine someone would do this in real life but i guess there are weirdos like this.
what a shame!!, they would've made such a cute couple.(¬_¬)