I suddenly feel water splashing on my thigh, which feels good in this heat, but I shouldn't be feeling it. The drinking nib has dropped off my Camelbak's drinking hose and water is running out in a small, steady stream.
No big deal; I don't end up losing much water, and I just close the valve once I figure out what's happening. One more thing to fix after I get back home, as if living in a fixer-upper weren't already enough!