Is the T-Shirt shaped different than normal? Strong Yope - DOYD of 'shaped'
Is the shirt damaged in any way? (rips, tears, etc.) no
Abbreviating Casual Friday as CF relevant? no Does his argument work the same on any day which is not CF? yes, the day and date don't factor in at all. He could even use this argument on a Friday, although it would, of course, be redundant Only this day? Only certain dates? Certain weekdays? Within a certain time period? no to rest Is the length of his work day relevant? no