Sense of humor? Where?

Even more shit I'm not allowed to do now. Sean got all pissy with me today for laughing at a video of a tribute to Merton, saying it was babyish and was slowing down his wireless connection to my Internet. Sounds like now I'm not even allowed to watch YouTube videos because it lags him. However, he IS allowed to watch them.

Why is my sense of humor babyish just because I was watching something funny. Not too long after that, he came to tell me a joke his friend had texted to him. Now, if anyone can understand how this is funny, well done. I sure as hell don't understand it or get why it's so hilarious. "I'm laying in bed naked. I should really get dressed because B&Q close at 9pm." Sean laughed at that. I just looked at him completely puzzled because I just don't get how it's funny. For those who don't know, B&Q is a DIY store in the UK. I've got no idea if it also exists in other countries, but that's just an FYI if you didn't know.

So, I'm currently bored and don't really have anything I can do. A lot of my friends aren't online, and those who are appear to be busy. I can't entertain myself with YouTube videos because anything I get a slightest laugh from is all of a sudden "babyish". I reckon the only reason he's lagging or whatever is because he's attempting to do too much at once...but like usual, it's all my fault because he can't deal with the fact that he's a total fucking moron. Nobody in the family fucking like him, and this is exactly the reason why! He drives you fucking crazy...to the point where you've got to fight off the urge to take a swing at him. I think that's honestly what he wants - to drive someone in the family so crazy that they hit him, then he can get rid of us by going to the police about it.

I reckon I could probably drive him crazy by turning off the router whenever I go into town. It'd be worth it. It'd drive him so crazy that he'd probably end up hitting someone and we could do the same thing he seems intent on doing - get him in trouble with the authorities.

Has anyone out there ever had to deal with a person like this in your family? Not actual family, but someone who is dating someone in your family; someone who seems to want to take control of the family? If so, how the hell do you deal with the anger and the stress of the situation bought on by these people? I'd really love to know.

UPDATE: Alright. My sister explained the joke to me earlier, but it's still not remotely funny to me. B&Q apparently sell beds, so the joke was that his friend is laying naked in a bed in the store and should get dressed cuz it's closing soon. Ha ha ha. I'm not remotely amused by the joke. Didn't even get a slight smile out of me. It's not funny at all.