How much do you tip a tow truck driver?

It all depends on the situation. I am a little biased since I own a towing company. If you are paying for the tow out of your own pocket than $5 if he/she did a good job is fair. If you have AAA or have a motorclub that is paying for your tow the rates are substantially less therefore the drivers pay is less also and since you didn't come out of pocket and you saved the gas that you would have burned from not being towed a $5 to $20 tip is always appreciated. If the tow truck driver goes above and beyond like drives you home after dropping off the car a tip is expected. Also if you are not going with your car it is wise to tip that way the driver will drop the car and keys in a kind fashion also I tend to slow down for bumps in the road or railroad tracks if the customer tipped and watch it fly if the customer had a attitude.