Luckily I have the patience to wait as well, I do get frustrated when people walk up to an enclosure look around for 10 seconds and walk off because they can't see anything. I was stood around the Golden Cat and Leopard Cat enclosures for most of the time I was there as I really wanted to get a decent photo of both and although not 100% happy with both the photos I got of Leopard Cat and Golden Cat it gives me a reason to go back to Exmoor to try and get better photos