There's no danger of overserving a guest at your next party with the DIY SOBEaR v02 bartender bot by Joe Saavedra. This little guy looks friendly, but he's equipped with a built-in breathalyzer. To get your tipple of choice, you'll have to breathe into the little bear's face.
If the SOBEaR v02 deems you sober enough to have another drink safely, he'll pour. If the bartender bot thinks you're too drunk to have another cocktail, you're stuck walking to the refrigerator and pouring your own drink like a normal person.