"hey hey, ho ho, $7.40's got to go,"
I would make it $7.00 then. TBH whats wrong with 7.40 for standing around and chatting with colleagues? Its neither mentally challenging nor is it hard physical work.
Where I live Burger King once had a deal with Pringles when you buy a Pringles can you get a coupon for a free burger.
This was advertised in Burger Kings own King Magazine with a super small (10% of original coupon size) image of one of the coupons. I ripped it out of the magazine and gave it to the BK worker and got a free Burger. THATS how smart you have to be for their job.
So again I would make it 7 instead of 7.40 chances are high they would be happy with it because they dont understand what happened.