Do spiders when they walk around
Think the ceiling to be like ground?
If we knew not ceilings from,
The floorings which they're standing on,
Would wise men argue night and day -
``The floor, good sir, is down THAT way!'' ?
And would there come a stern reply?
``No, it's there, I'll show you why!
If you doubt we are on the roof,
Then I give you just this little proof -
Behold, a coin falls from my pocket!''
He said, tripping on the lighting socket.