I am so confusing why one has to "look very hard to see" here. why to see "a suit of amor" in them? and why "any" of them?
my own guess is "one has to be careful with these guys" ??
here is the sentence:
Nathan was staring at the cans of lager. I had to admit that you’d have had to look quite hard to see a suit of armour in any of them.
here is the context:
'I' found some ex-soilders to help us to lift a wheelchair stuck in mud. They are the only men 'I' could get although they are drunk with beer. Nathan is my company, waiting for 'me' to get some help.