It's wrong to walk out on your job.
James came to work at WalMart with a terrible headache and was shouted at by three customers before lunch.
James wants a break from the screaming customers.
James tells his manager that he's going to lose his mind unless he gets some peace and quiet.
James rips off his name tag, throws it at the bellowing customer, and storms out the door.
The manager transfers James to stocking inventory in the deserted back room for a few hours.
James is blacklisted at that store and by several other employers who know the owner.