bloody stools

Little bugger woke me several times tonight demanding to be fed. At 5:30 I heard him in the box and went to bury it for him (he has issues) and when I wiped his butt (the things we do for our pets) I noticed blood. The stool was dark but fully formed. He's been particularly stinky lately, but otherwise OK symptom-wise. It's Saturday morning and I have to go to work today (second job and I need the money). I can't afford to take him to the emergency room. This just sucks. It really, really sucks.