13th March 2006, 08:45 PM
Perhaps they need voice recognition so they only beep for your whistle, not anyone elses; so the whole site doesn't start beeping when one person looses their trowel - imagine the headache
"a pound of shelled peanuts was handsome pay by any apes standards" Pratchett 1998
"a pound of shelled peanuts was handsome pay by any apes standards" Pratchett 1998