Yesterday I took my DS to the garden centre where there is a small play area at the back of the restaurant so you can eat/drink while your children play. My dad and I were waiting for a couple of women to leave - they had a baby, a toddler and a couple of three year olds with them. When we sat down there was a copy of the Daily Mail lying on the seat next to my dad and he was about to pick it up when he realised that there were two dirty nappies inside it. And a couple of used wet wipes left lying on the table :(
I don't shock easily but I think that is beyond gross. Especially when we were about to have tea and mince pies 
and there is a loo with a changing table just around the corner.
I guess they might have been there before they arrived but then wouldn't you have moved them? I took them out to a member of staff (and then washed my hands).