A motorist recently learned about a semi truck’s blind spot the hard way.

In a recent video that was posted by Framingham, Massachusetts, resident Lenny Chroek, a red sedan tries to cut in front of a tractor trailer at a red light.

When the light turned green, the trucker continued forward, seemingly unaware of the small car that tried to muscle its way in.

Some commenters believe the trucker may have known about it and decided to push the car forward anyway. Others, however, argued that the blind spot (and light weight car) prevented the trucker from realizing it was there.

Either way, the car driver sure learned a lesson — and probably hopefully won’t try to squeeze in front of a big truck again.

Watch the footage below.