I've got a bike, you can ride it if you like

Scene from a Thursday:

+	Got new Kevlar tires on Tuesday!
-	But I was too lazy to replace the tubes, which were almost as ancient as the tires.  At about 9:15 I got a flat in Lexington.
+	I had a spare tube!
-	But, stupidly, no pump.
+	An incredibly helpful fellow biker stopped to lend me one!
-	My spare tube turned out to have a Schrader valve.  The rim for my rear tire will only take Presta tubes, and the larger valve wouldn't fit.
+	Incredibly helpful fellow biker had a patch kit for the busted tube, and helped me patch the leak!
-	We were overeager about inflating the patched tube and it sprang a valve leak.

Pluses: 4
Minuses: 4
Result: SUCKAGE

EDIT: and then, saving the day;

++++ keyne cancels a doctor's appointment, picks me up in Lexington and drives me all the way to the office. Whew!

The lesson for the future is that being half-prepared is little improvement over not being prepared at all. Armed now with two spare Presta tubes, a glueless patch kit and a mini-pump, I remain yours ---