I have a coworker who was awoken by a friend to give the friend a ride home because the friend was drunk. My coworker had a three beers total between dinner and while watching football. He went to bed at 9PM and got the call around 11PM. While picking up his friend he got pulled over by Newark police and he failed the breathalizer. Turns out that as you sleep you matabolize the alcohol and you blood alcohol goes up even if stopped drinking hours ago your level can be over the limt hours later. So here he tried to stop a drunk driver and instead he got the ticket. So it's not always as it seems.
“I prefer peace. But if trouble must come, let it come in my time, so that my children can live in peace.” -Thomas Paine