Quote: "I don't know if a show a couple of heads separated from body and lying over tons of blood will I disturb someone? "
Things like that may disturb or even offend a lot of people, but strangely are not considered profanity. At it's core, Game Guru is a first person shooter creator, and first person shooters are violent. Stay away from nudity and verbage that could offend someone and you should be fine. Link to any videos externally; don't embed them, and like mentioned above, provide a warning. If you have any doubt about what you are posting, just link to it.
EDIT: If you do step over the line, the mods around here are pretty cool. They'll let you know. Just don't do the same thing over and over!
MAME Cab PC: i7 4770@3.4Ghz (passmark 9945), 12GB RAM, Win 10/64, GeForce GTX645 (passmark 1898); Shiny new laptop: i7 4800MQ@2.7Ghz (passmark 8586), 16GB RAM, Win 10/64, GeForce GTX870M (passmark 3598); Old laptop: i5@2.3Ghz, 8GB RAM, Win 7/64, Intel 3000 graphics