What a scare you had this weekend. A trip to the vet may be best just to ease your mind. The butter could have done it. It acts like a lubricant and too much of it can really make them go. Cheese can have the opposite effect on some animals. If Duncan has a delicate tummy, all that grease could upset it. I can't eat fried foods for the same reason. A check-up would be best. Hope he is all well soon. Please keep us posted.