Well, I've been in aviation maintenance for the past 20 years (including the 4 year apprenticeship) and most of it (for about about 14 years) was with 'line stations' section which was mainly relieving my line station based colleagues when they're on leave etc. and of course the 'flying spanner' duties ... which in 2006 included several charter/extra flts doing the KUL/BAH/DXB/KUL sector for a total of approx 22-23 hours in the crappy business class cabin of an A330 (seats only recline up to 45deg or so)
.... me and some of the other unlucky 'flying spanners' who got picked for the flts met 3 different sets of tech + cabin crew during the trip (they only did 1 sector each) and by the time we got home we were practically out cold
. That's the kind of cr@p we 'spanners' have to live with 24/7 just because we're the 'behind the scenes' guys. I fully agree if a legal limit is implemented for LAEs' duty time.