Someone went on a Smart car-tipping spree in Denver this weekend

Though it’s hard to resist, given their size, weight, and the perceived smugness of those who drive them, you shouldn’t tip over Smart cars.

Local TV station 7News reports police are looking for a group of men suspected of tipping over five Smart cars parked curbside in the city’s Baker neighborhood. The tiny vehicles are all owned by car-sharing startup Car2Go.

The cars were flipped onto their sides sometime early Sunday morning. Police received a report of four men leaving the area, but had no other information on the suspects, or what their motivation might be.

This isn’t the first time someone decided to flip over Smart car, with previous incidents reported in San Francisco and Columbus, Ohio. (“They look like they are dachshunds sitting up on their hind legs,” one witness told NBC Bay Area, describing the tipped cars.)

As with cows, the original target of late-night tipping, maybe we could just leave the Smart cars alone?