Sometimes the pebkac is so strong it continues to amaze me.

Step 1: customer updates pos software
Step 2: customer is presented a perfectly reasonable UAC screen with yes/no choice
Step 3: customer panics and takes no further action
Step 4: a few hours later the first customer enters the store and more panic ensues as the update is still waiting on the uac
Step 5: the customer calls us in panic and acuses us of writing shut incomprehensible software

Wish this was an once in a year exception, untill we wrote a bypass for the whole uac crap this was a daily occurance.