Yesterday I was standing in my garage, where I keep my UV exposure unit... it's in a corner where nobody will look at any stray UV by mistake, next to a sturdy workbench. I keep my waste discharge jugs on the concrete floor under the workbench while they are waiting to go to the waste facility. I felt something wet on my foot and looked down and saw that my shoe was pressing against one of the jugs and it was making a little stream of liquid onto my shoe! It stopped when my foot stopped pressing it, and the jug is still full... it wasn't leaking over time, only when it's pressed. It had a little dent on the side just like outwest described.