I did not hear the mention of “DH”, but on computer blogs it usually means “dear husband.”
The story about the grocery store scam went something like this:
Jerry stood in line at Vons behind a woman who was buying baby food. The total bill was for around $12. She told the clerk she didn’t have enough money. Upon hearing this, Jerry gave her $20 to cover her bill. She then paid her bill, pocketed the change, and left without even thanking Jer.
Once he got into his car, he realized that he forgot to buy carrots for his bunnies, so he went back into the store. Once inside, he noticed that the same woman he gave the $20 to was at the service desk presumably getting a refund for the baby food purchase. He then went on to say that this could be a quite scam that this woman is running because she could be going to stores all over the place and pulling that same act.
Hope this answers your questions…