unethical to exploit disconnected player?

[Lego05]

Well I'd bleed the guy down a little but not too much.

This isn't against the rules...as for ethical decide for yourself. However, this is pretty close to how you should be playing even if the guy wasn't disconnected. Him being disconnected just makes it that much easier...I always loved it the few times this happened to me. Shoving every hand and knowing they can't call is wonderful.