My spouse's Aunt and Uncle would attend the funerals of total strangers and then go to the funeral luncheons. This was their way of "eating out" without having to pay for anything.
When someone confronted them about this, they were both upset with that person and said that it didn't make any difference whether or not they knew the deceased or the family, as they were there to offer their condolences to the family.
Of course, they never sent a card or flowers to these families as they were far too cheap to spend that much money on someone they didn't know.
When my father-in-law died, the process at the small, rural Catholic church was for the wake to be held the day before the funeral. It would start at around 4 p.m. and end around 8 p.m. Since this was over the supper hour, the ladies of the church provided sandwiches, chips, bars and bottled water in the church basement for the immediate family.
So, the sons, daughters-in-law and grandchildren who were in the funeral equivalent of a receiving line, would alternate taking breaks sometime during the wake to grab something to eat. When my spouse took his break, he found his Aunt and Uncle sitting in the church basement eating the sandwiches and wrapping up what they saw as "extras" to take home with them.
He asked them what they were doing and his Uncle said angrily that they were eating because they were family. My spouse pointed out that they weren't immediate family and that they weren't the ones standing greeting and thanking people who came to the wake. He also told them that other family members had not eaten yet and that they needed to put back the food they were taking.
He stood and watched as they unloaded themselves of over a dozen bottles of bottled water, a couple dozen sandwiches, two bags of chips and what looked like an entire pan of bars. After they had put it back (and he said they had steam coming out of their ears), he told them not to come back down to the basement or touch any more of the food.
My spouse is the oldest son and the quiet one in his family. He never raises his voice but when he says no, not one person in his family is going to be brave enough to argue with him.
By the way...his Aunt and Uncle were not poor people or starving people. They had plenty of money but why spend it when they could get a free lunch just by attending the funeral of a total stranger!