Still, I was not happy. But I toweled up what I could, started a note to leave for my landlord because I didn't want to explain all of it in a phone message, then told myself "Okay: DRIVE," meaning drive to work, which gives me a little more time in the mornings. That was could've been worse thing #2; I have another option for getting to work than taking buses, and by deciding that I could avoid stressing about reaching a bus in time. I finished the note (actually two notes, to deal with two related problems; long story, or maybe it isn't but I don't feel like telling it, so there), then called my landlord. I was relieved that it went to message, so I wouldn't be waking him up at 6 a.m. but he'd know as soon as possible.
Me being me, I was worried about it while at work. I called twice during the day to see if I could reach my landlord again and didn't, but I did my best to reassure myself that I'd called the right number and he would have gotten the message. And he had; I got home quickly (thanks, my car! thanks, traffic not being too heavy!) and found a note from him, describing what he'd done and what will happen next. It, will, be, fixed.
In fact, there are certainly more than 2 "could've been worse" things involving this leak, but you can likely puzzle those out from this post. I am grateful that this isn't too bad and is fixable.
(Using a wet icon to represent how NOT-wet I was during these shenanigans!)