You're absolutely right, James - it was painful and embarrassing viewing.
I think Big Brother should have intervened when they saw how drunk she really was and asked one of the other housemates (Jade or Alex) to take her to bed. After all, they sent Lee into the bathroom to rescue Kate when she fell asleep in the bath after an earlier boozing session, didn't they?
Click here if you're interesting in reading the Mirror's (the so-called anti-Big Brother paper) view on the matter.