No,
@RickCorey, it does not count if you enjoy it.
With all your helpful suggestions, please allow me to give you a suggestion. Instead of cleaning/straightening your trunk and hauling bags of manure, just put a lead on the cow and walk her to your garden; then point at the spot you would like her to deposit the manure. Just kidding.
@jvdubb, that was a good deed. Those things can be costly and the boater is required to have them on board. You helped him to stay legal. Betcha most of the other drivers just whizzed past without stopping. Good for you!
I was asked to do a good deed today to give someone a ride; then they spoiled it by giving me gas money, so it doesn't count.