<human>: Just some of the things he has done:
1. 'Pretended' he is going to college, got kicked out, and is still receiving Government funding for education (His rent and all his bills paid, plus €70 a week for himself, even though he doesn't need it at all, he works for a tv station, and is an extra on movies/soaps)  
2. He spends 1 hour plus in the shower each and every day, directly after this, he has his hairdryer on for about an hour. I can only presume he drys himself with the hairdryer, as his hair is *not* long at all. We don't have an electric shower, so to get warm water we have to put on the heat, which is gas, and is not cheap for a student like me. 
3. On numerous occasions, I have come home to find the front door unlocked, the heat on (one day it was on for 18hours) or the telly on with no one in the house.
4. Scammed me out of paying bills ect
5. Brought home his boyfriend, had loud popstikle sex.
6. Forgot to separate his red-white clothes, all the colors ran, has left the wet cloths in the bath for 4 weeks now, and still counting.

As the government is paying all this for him, he has NO value on money. I'm finding it hard to watch him waste so much, as I come from a middle-lower class family, and am used to conserving energy, even the smallest thing. 
What are your past experiences with housemates? Any way to politely get them back?! (One guy was stealing my brother's butter in college, so he put laxatives in it...it didn't happen again)

Can you summarize the given text in a few sentences?
<bot>: My housemate is driving me crazy. What can I do to deal with this/get him back, and teach him a few lessons?