A question about etiquette ...What to expect for a day of helping people?

Ddaddy said
A gift freely given does not ask for, nor require, reciprocity. That’s why it’s called a “gift”.

If it was a business arrangement you wanted, then you should have negotiated it up front.

What the hell is this? You just chiming in to play Devil's advocate?
Are you the type of guy that uses people under the guise of "Friendship" ?
Would you be okay with feeling used after 5 1/2 hours of doing most of the work on someone else's car?