Personally, the thing I found most annoying was when I asked the PM to time the 1 minute outbound in the hold for me... "forever" later I asked "how are we going on that 1 minute?"... "oh, yeah... 1min 10 secs"
Most airliners have two stopwatches - one for each pilot. As one who has been caught by the other pilot forgetting to time outbound, it saves the hassle if you also press your own stopwatch. Airmanship?