The dangers of air travel

So a friend of mine just related a story to me about an airline flight that had to return to Heathrow Airport because some guy took a crap in the loo. 

Now that's a powerful dump.  It makes me wonder a few things:

1. Has Rush Limbaugh been traveling to the UK recently?
2. What does one have to eat to take down an airline with just a dump?
3. Did they have to call in a cleanup crew?

I've taken some nasty dumps in my time, but I haven't ever managed to get an airline return to the airport as a result.  I'm going to have to add that to my "to do" list.