I was at DLR a few years back and decided to hop on Pirates right before close. It was empty with the exception of me and a group of five other teens, and we all ended up getting seated in the same boat.
Long story short, these kids were high as a kite, thought it'd be smart to smoke the entire ride, and while it was entertaining to hear them say "duuude. Let's try and hop out of the boat or something. Dude this water looks so deep. DUUUUDE" the whole ride... it made the ride for a bad experience for me and I hopped out of the boat as soon as we got back to load/unload, told the CM at the exit, she called security, and I got to see them all get tailed by two security guards and dragged off behind stage. Wonder what happened to them... haha.
Oh, my! It's good to know that security is right around the corner!