If you are a printer, sometimes, you can blame mistakes on someone else... Take the above example, perhaps it was lack of concentration, maybe a little too much wine, or perhaps not enough sleep, I choose to blame it on 'Titivillus' or 'The printer's Devil'. There are a couple of origins for these pesky demons. TITIVILLUS was attributed to errors that crept into manuscripts of early scribes, and were said to be listening in to idle gossip that occurred during a church service