1) Yes
2) No
3) Probably :P
I like to be honest, I am sarcastic and they don't always go great together but I try my best to not sound harsh [good word Heeeey ;) ]
I don't like lying, I actually hate it with a passion. Lying only leads to more lying and trouble or fighting or all kinds of shite we don't want to be part of. Pathological liars are the worst kind imo.
Changing the subject, yes, this helps to avoid to do either one but only if the other doesnt care enough to know whether or not you would be telling either a lie or the truth :P