I learned this the hard way the first time I used it on a hot, sunny day (while leaving it sit out on the deck of my boat). I opened the tube up, and as I was messing with my bait and hook, I had the tube in an upside-down position. I didn't think anything of it, since when I used it earlier in the morning, I had to squeeze pretty hard to get it to come out.
Well, let me just say that most of that tube emptied out onto my carpet as if it was water and not gel.