[Cody Carey]

I use "I think" or "I'm pretty sure" to cover my butt... I might say "I think that you can have a battery on your robot" even though I am very well sure that you can just to make sure that I don't have to eat my words later.

I have also been known to use these phrases to add a certain feeling to my post, such as sarcasm. ( I think that I do anyway )

And... People are just trying to help, if they give a stupid answer, take it up with them on an individual basis and don't yell at everybody, especially if their apprehensive answer actually did help.