Can't.

We'll soon see whether you can or no! You do it, or _I_ shall have to mend your leg for you;" and he showered down a storm of oaths.
Eric rose, and resolutely tried to mount the rigging, determined at least to give no ground he could help to their wilful cruelty.

But the effort was vain, and with a sharp cry of suffering he dropped once more on deck.
"Cursed young brat! I suppose you think we're going to bother ourselves with you, and yer impudence, and get victuals for nothing.

It's all sham.

Here, Jim, tie him up." A stout sailor seized the unresisting boy, tied his hands together, and then drew them up above his head, and strung them to the rigging.
"Why didn't ye strip him first, d---- you ?" roared the skipper.
"He's only got that blue shirt on, and that's soon mended," said the man, taking hold of the collar of the shirt on both sides, and tearing it open with a great rip.
Eric's white back was bare, his hands tied up, his head hanging, and his injured leg slightly lifted from the ground.