My friend tried to hug me through a window as a joke, but bashed herself against it. She had a huge bruise afterwards.
And then a couple of days later, with the same friend, we both went to run up and hug eachother at the same time and ended up clashing and flying backwards. I was near the wall and pretty much landed in it. I think she landed on one of our other friends who was behind her. It was hilarious though.