Related:

• Geologists take their rocks out and play with them.
• Geologists do it in folded beds.
• David was just a shepherd who liked to get his rocks off in leather.
• Geologists do it eruptively, with glow, and always smoke afterwards.
• Did you hear that David of the Bible was nothing but a young man who used leather to get his rocks off.
• Bartenders do it on the rocks.
• Mountain Climbers do it on the rocks.
• Hey, buddy! Get back there with the other rocks!
  -- Homer's attempt to domesticate rocks, "El Viaje Misterioso de Nuestro Home...