ZAPHOD Hey, this rock...
FORD Marble...
ZAPHOD Marble...
FORD Ice-covered marble...
ZAPHOD Right... it's as slippery as... as... What's the slipperiest
thing you can think of?
FORD At the moment? This marble.
ZAPHOD Right. This marble is as slippery as this marble.
- Zaphod and Ford trying to get a grip on things in Brontitall, Fit the Tenth.