The Canada Day long weekend is upon us. Who among us won’t be enjoying frosty beverages while enjoying some relax time?

Simply, the juice brand, has expanded into the adult beverage market with Simply Spiked Lemonade, and to keep people honest about any taste tests has introduced a lie detector in a can.

The Keep It Real Can is built with sensors to measure galvanic skin response and pulse rate, which are two of the key metrics used in polygraph tests.

If you get caught lying while holding a Keep It Real Can, the can will vibrate and a light on the bottom will turn red.

Simply is also asking people to post “honest” reviews of the Spiked Lemonade beverage for a chance to win a $5,000 prize.