Apparently contact with cool air triggers the "squirt gun". They make little cap things that go on top of it, to absorb moisture. I don't know how well they work, considering a condition a friend of mine calls "veusvius bladder".

My sister's partner's daughter had a little boy. I was invited out for the barbecue to celebrate the baby's birth and his mother's graduation from high school, and found myself in charge of the three a.m. diaper change and bladder refill for several nights. The kid had a good apetite, and I was happy to give him two bottles, and consider what the next change was going to be like.