What are the odds he tells his CA he can't calculate mins or even worse calls dispatch to have him do the calc for him?
In retrospect I had a FO call me as their dispatcher and they told me they were running late and requested THE CAPTAIN DO THE PREFLIGHT AND BEFORE START lists. I told them Ummm OK ill pass that on. I called the CA and he was taken aback when I told him the FO's request. IIRC He said Ok thanks for informing me, ill be sure to have a word with him. **I would wanna be a CVR on the wall for THAT debrief after shutdown with the FD door closed.*