As the title says really.
If something goes wrong for DS (7) he tends to go into meltdown, burst into tears, start going on about he is hopeless and can't do anything right etc. And this takes him a long time to "snap out of".
It's mostly not over anything big e.g he couldn't work out the last question on his homework (having done all the rest), I asked him to do his spellings and he forgot ... so I had to remind him again and he started berating himself.
He just seems not to be able to cope with "failure" very well.