I'm not talking about eating tofu, but the expression that means something more like taking advantage of someone. What exactly does 吃豆腐 mean, and where does this expression come from?
犬子 (literally, dog + son) is an archaic, self-depreciatory term to refer to your son (occasionally it's used to insult other people's sons). This answer raises a question though; who is the dog ...
There is an expression in English: "For all I know, ...." The following clause often has a modal expressing uncertainty or the hypothetical nature of the assertion, like "might", "may", "could", ...