Jerking off at work! WTF??

ok this has to be an all time low...the guys at work are looking at pics of Angelina Jolie and commenting on how she looks sooo hot...and then, get this, they say they're all charged up now! eeeeeeeew! wet dreams at work? this is so gross...the bloody wankers are like spraying their pants! And it's just 10 am over here...this will be a fun day!
And these are the so-called hard (no pun intended) workers around here who stay here all night and all day supposedly working...but mostly goofing off...but if I come in 10 minutes late and work through my lunch hour...that's not work coz there's no one around to see...and I get cryptic messages like "Well, I'm not saying this, but some people have a problem with you coming in late" WTF??
And the women think they have to pretend to be in a beauty contest and some of them seem to enjoy being treated as sex-objects by these losers... of course, they may not be aware of how these idiots criticise them the minute they leave the room...about how fat they look or how badly they do their make-up and hair..or even how slutty they are...and since I'm the only woman over here, they ignore me...and don't mind that I can hear them...bloody annoying jerk offs!....am so sick of this...are all male dominated offices like this? And the worst part? No one of these losers is even averagely good-looking... most are paunchy middle-aged blokes...which explains their frustration I guess...but still..c'mon...
I should ask to change my place...but I cant coz we don't have HR and my line manager sits next to me...pig!