Anyone come across this? My 4 year old beagle did an interesting couple of poos this weekend; I assumed he'd eaten a yellow sponge type ball, as there were lumps of firm yellow sponge in it. But we haven't got a yellow sponge ball and I'd have noticed if he'd picked one up on walks. Have had a quick Google which mostly talks about yellow mucus in poo; this was too firm to be mucus? Looked exactly like yellow foam tennis ball. He does have problems with anal glands (they stunk last night and he seemed a bit uncomfortable). Generally seems v healthy. Any thoughts?