This is an official warning for all users of canned hair spray.
A Washington state woman returned to her car after work to discover a can of hairspray had exploded and embedded itself in her windshield. Temperatures in the area were only in the low 90s.
Karmend Ayers, the woman who left the can in her car told the local news "At first I looked up, because I thought maybe something fell, but then I noticed it was from the inside out. Sure enough, it was my hairspray that exploded, and it was in the back seat... it's a far distance to travel and with a lot of force to break through the window. It launched like a rocket "
She was kind enough to leave a message and photo on Facebook "TIP OF THE DAY: Don't leave your hairspray unattended in your car on a hot and sunny day."
Be careful out there.