It's good to be prepared when that casual afternoon watching movies and eating Cool Ranch Doritos with a friend turns into something more than friendly. Just run to the bathroom with your Safe Kiss meter and see just how raunchy your breath is smelling. We recommend you rinse and repeat if it shows anything less than a perfect green heart.

A bonus function of the device is that it detects alcohol on your breath. Michelle Rodriguez is totally wishing she had had one of these and a box of Altoids in her car on that fateful Hawaiian night last year.

Kiss Me Meter [Seju via Popgadget]