Name changed for this. Regular poster and don't want this attached to my normal user name.
Weather here crap, as everywhere, but warm enough so DS (7) and I don wellies and waterproofs and take a walk down the beach.
Wind and tide conditions are making it very rough and tide was mid height and on it's way in.
We see a mum, dad and their 2 DC's on some rocks - which as you imagine are wet and slippery.
Suddenly a wave crashes up to the rocks and one of their DC's (a lad of 6) slips and falls into the sea.
The parents are understandably in a panic and the dad starts to take the smaller DC back over the rocks towards the shore whilst yelling at the lad to swim to rocks and hold on.
I can see he's in trouble take wellies and waterproofs off yell at DS to stand back from water and go in to rescue him. The tidal conditions made swimming really difficult so I take the lad towards the rocks, calling for the mum to come help him up.
She starts saying she may slip, it's too near the water and can't I take him to shore. Out of breath and not wanting to waste it talking I get to the rocks and with great difficulty get the lad out. As I did this he slipped a bit banging his head and cutting it. I cut my shin quite badly climbing out myself as waves crashed me against the rocks.
Get to the beach and coastguard have arrived and called paramedics. (There's a beach watch thing right by where we were).
Anyway the paramedic arrive after a bit a said the boy needs to go to A&E as he has a head injury and they need to check his lungs. They dressed my shin on scene.
The boy got really upset saying he'd miss his friend party this afternoon - he was actually hysterical but I suspect it was more the shock. The mum looked up and said " well you wouldn't have had to miss it if that stupid cow had taken you to shore instead of throwing you onto the rocks" 
I was quite impressed with the coastguard who replied " what the stupid cow who most probably just saved your DS' life?"
AIBU to think she should have done something herself if the way he was rescued was such a problem. 