Oh man yeah, my first girl is notorious for holding off for a few weeks and then laying the biggest stinkiest logs ever! Check this one out. I weighed her the day before and she was like 500g then the day she pooped she was down to 415g!
Thats some big crap, thats like 20% of her body weight...... Put it this way that would be like me and a 36 POUNDER!