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?
But when I offer to help, I either give the help freely...or state my terms for the help I give.
I expect others to do the same when I ask for their help.
I generally give people who help me more than they ask...but that’s a choice. I never expect the same when I offer free help or state my terms.
Feeling “used” means you didn’t get what you expected and up front agreement of terms eliminates that. Like I said, either give the help freely or agree on the terms in advance.
But live with what you get and don’t complain...because you decided which it should be.