Battle of the Bastards - S6-E9
Corrected entry: SPOILER: Rickon Stark gets set loose by Ramsay Bolton and told to run to his brother. He knows that arrows are being fired at him, but he still runs in a dead straight line, so of course he gets struck down. If he'd just zig-zagged a bit he'd have been near-impossible to hit.
Battle of the Bastards - S6-E9
Corrected entry: At the meeting before the Battle of the Bastards, Sansa rides away before Ramsey mentions he hasn't fed his dogs in 7 days. The next day when he's tied up in the kennel he said my dogs will never hurt me. Sansa says "you haven't fed them in a week". She wasn't there when he said it, no way she'd know that.
Correction: Jon, Davos, Tormund or anyone else that rode out with Jon to discuss terms with Ramsay could have told Sansa about it or mentioned it around camp which Sansa could have then heard. Ramsay was threatening to feed Jon's men to his dogs, something that would likely be discussed by the men in Jon's army, if for no other reason than it is something they would try to avoid experiencing.
Correction: Rickon is a young child and scared. It would be perfectly normal for him not to realise that zig-zagging would help him be more elusive. Also, zig-zagging is no guarantee that he still would not be hit by a random arrow.
ctown28 ★
Next to that it would slow him down and he might trip and fall.
lionhead