I cannot bring myself to see you as unadulterated, Cranky. 
Now, someone did mention a plug. In the case of a nail, you have really lucked out. A plug is indeed the pluperfect fix. I’ve also been told by my tire guy to NEVER use Fix-A-Flat type of cans unless stuck on the side of the B.Q.E. or somesuch. They fill the inside surface of the tire unevenly, and make it almost impossible to spin balance, as said above.
OTOH, that plug thing will be cheap, fast and unquestionably effective, AND she/he ( your mechanic) will already KNOW where the hole is.
Now, can I carry your books home from school, since you’re carless and walking? 
Cartooniverse