cold cape cod clams, 'gainst their wish, do it ...

Random howler from the Science Joke Archive:

Chemical engineers do it in packed beds.
Chemists do it in test tubes.
Chemists do it in the fume hood.
Chemists do it periodically on the table.
Chemists do it reactively.
Chemists like to experiment.
Electrochemists have greater potential.
Polymer chemists do it in chains.
Toxicologists do it till they're half-dead.

and there are unbelievably long lists on how physicists and mathematicians do it.. (sorry, i chose chemistry only because it was a favourite subject in college..)