Tightslot,
Having read back through earlier comments I should apologise for the tone of them, I was rather tired and grumpy myself this morning. I have been reminded by my better half that the cc in case while not entirely happy at the situation appeared to be sufficiently satisfied with it due to my familiarity with the aircraft etc and the general mood of the surrounding pax and his proximity to us.
Something that this does throw up though of course is the real safety of a sub two year old sitting on the lap of an 18 stone adult for take off/landing. It may be law but it does not take a rocket scientist two realise that the child is far from best placed in the event of a rapid deceleration!