I've got a couple, all at my friends house during my second year of uni.
I was round my friends student house, when they'd just moved in. My two friends lived with seven other people in this house, and one of them pissed all of them off. She wouldn't do cleaning, she wouldn't wash up, she would leave her stuff all over their living room, etc. She also brought a new guy back every night that week, and, from personal experience of crashing on their sofa one or two times after this, she was VERY loud :-S
So, about a week after they'd moved in, she went out in the day to the shops. One of the guys living in the house came down and said 'Her room's open.' Instinctively, four of us leapt up and ran up the stairs looking at the mischief we could cause. As we opened her door, the first thing we saw was a small sofa.Now, I'm sure there was something easier to do, but as it was the first thing we saw we just thought 'Fuck it, take it.' So we carried it down the stairs and into the living room, as you do.
We now reached a problem, as we didn't know what else to do with it, until one of the lads looked outside. Having realised that the living room was an extension of the house, he wanted to see if he could put the sofa on the roof. We brought the sofa outside, but then realised that, unfortunately, the roof was slanted, so it wouldn't work. The neighour (another student house) came outside and asked what we were doing. "Oh, one of our housemates is an annoying **** so we're hiding her sofa. But our roof is slanted so it won't stay up there." the neighbour looks at his roof; also an extension;"Well, our extension is flat, wanna put it up there?" So we did. Once up there, two of the lads took a can of beer each and went and chilled out up there. Around this point, she returned, went upstairs, promptly came back downa nd took half an hour to hear the lads laughing outside.
Same people, same house later in the year, one of the guys was pissing off the others, so they went into his room, put as many of his possessions as possible into condoms, (I got to the house as they were doing this), then we hid his duvet under his matress. He raged when he got back in the evening, mainly because he'd brought a girl back. When he'd eventually found his duvet (he later admitted he was impressed with the hiding place), we went up and gaffa-taped his door shut, and tied the handle to the hand rail of the stairs. He ended up ringing one of the guys to let him out, which we refused to do for the first 5 times he rang. At that point, we felt he'd learnt his lesson
Oh, the fun.