A strange story... I bought these two guinea pigs that we named Peaches and Cream, from Petco. We've only had them about 6 weeks. My daughter thought that Peaches was pregnant, so we took her to the vet. The vet said he saw no signs of pregnancy. Cream, however had some respiratory issues, so we got some antibiotics for her. Today, Peaches was having some very labored breathing and making some "clicking" sounds. I took her to the vet. The vet assistant began taking her temperature in the butt. All of a sudden, this weird stuff came out of her. Turns out to be pus. After that Peaches looked like he was dying. She layed down on the table and appeared to be dying. The vet scooped her up and brought her in the back. She came back about 10 seconds later and told me that she wanted to die. She could do tests, blood, etc... and try to save her. I said do it, of course. She left and came back about 10 seconds later and Peaches was gone. I couldn't believe how fast she went. I'm wondering if it was too much stress taking her temperature. From the looks of the pus, she had a serious infection. I'm sorry to gross anyone out. Has anyone had this kind of experience? We will miss Peaches. She was so beautiful. Cream is very lonely.