The accidents thread has reminded me about this.
Whenever DH does this, I hate it because I think if he tripped on something, then the dc would surely die. It would be a heavy smack on the ground from high up wouldn't it? Also, if you are carrying someone on your shoulders, your vision isn't so good because you are not moving your head so freely are you? This is apart from dangers from up high.
It is such a common thing to do but I feel the danger isn't recognised.
What do you think?