If I am asked for money by a beggar on the street, or see a homeless person with a sign, I try and give them food as it is usually more useful than money (which will probably be used for alcohol or drugs).

I was asked this morning for money and I offered to buy the person breakfast instead, he refused, but it made me wonder if it was acceptable to buy a gentile homeless person non-kosher food, most likely trief meat or pork?

Also, once Pesach begins would be acceptable to buy a gentile beggar chometz, as pretty much anything you would buy on the street would be chometz during Pesach?

I did see this similar question, and I'd obviously avoid beef with cheese as I know you cannot derive any benefit from it, ever.