Last night my son phoned at 8:30 pm to say his bike got a flat, and he needed it to get to work this morning.
Threw my box of bike tools and floor pump in the car and drove over to help him out. His tube had developed a tear right at the valve stem so it couldn't be patched. I had a spare tube with presta valve. His bike takes Shrader valve tubes. We made it work. and he got back and forth from work today without a problem.
This evening I took my son to the local bike Mecca and bought him 2 tubes, patch kit with tire levers, pump and a multi-tool. That should save me doing another house call, or it might not. Seem to remember sending him off to University with a bike and bag of tricks to keep it running. The bike was stolen, and who knows where the tools went.
Before you tell me to let him grow up and solve his own problems, let me add that he is a special needs person and although he was unable to finish University, I am pleased with the growth I have seen in him since leaving highschool.