I work retail, so I'm just going to drop a few short stories, because I am bored at my non retail job.
1) A woman was in last night and wanted to return pants she said she still had the tags for and everything. Ok no problem. My coworker looked at them and they didn't have the tags on the, they had clearly been washed, and they water spots on the legs like she had been walking out in the rain. No you cannot return those.
Similar story from a friend of mine.
She returned a pair of yoga pants from a repeat customer, who shopped enough to be recognized by sight, but didn't realize until after the customer had left that there was dried sperm that ran all down the crotch of the pants.
The customer continued to shop as normal after that. WTMF?!