While there at the station, I saw that she was not able to pay with her food stamp card/EBT/whatever the thing is called. She tried a few times and I don't think it was successful as she started to dig and count cash. She had her twin girls (around toddler age) with her.
I was tempted to pay for her purchases (I am sure it wasn't much) but figured that could be awkward. I don't know that she even recognized me.
Would you have done anything in this situation?