Possible Clues:

• Hit the wrong key
• Turn a monkey into a donkey, e.g
• Tap out wrong letters in slightly obscure exercise
• Wrongly enter road’s designation
• Incorrectly key in
• Enter incorrectly
• Create a word like “chnage” or “Cathoilic”
• Make a donkey instead of a monkey, e.g
• Transpose, say
• Write incorrectly (on a keyboard)