b-dll/BA, seems more like a lack of `awaremanship`;a lot of `cheese holes lining up;,compounded by a p***-poor handover of contol when the co-pilot left the cockpit.It might be `boring` in the cruise,but you just `suck-it-up` until it`s your turn for a break...
Maybe they need a `third man`....err.. engineer with a big stick...