I was out of town, 200 miles from home. There were several shops in that town, plus a few in sparsely-populated areas on the way home, that MSCs were DESPERATE to fill.
I offered to do them, making it clear (especially on the en-route ones) that I would TRY to get them done but was not positive I'd be able to do it in the time frame specified. Due to the delay in the MSC returning my emails/accepting my application, I got a late start. I did as many in the town as I could, then started back. I was not going to be able to get to the out of the way, boonies location that they had been begging and pleading with people to fill, and no one but me had stepped forward to do.
I got home at 2:30 AM and immediately sent the scheduler an email telling her I was unable to complete the shop because I wasn't there at the prescribed time (it was a 2 hour window, as I recall.)
She flaked me and wanted me removed from shopping for that company. All because I offered to TRY to fill a shop that she had been unable to get filled by anyone.