At the end of a marathon your mind sometimes plays tricks with you and when you add poor vision because of foggy glasses and you might be in for a big surprise.

The video below is actually a very clever ad for Optifog with a humorous play on why you really would not want foggy glasses.

This finish line reception was certainly not what the female runner here expected.

But not all messages from OptiFog have runners or other athletes in mind.

Optifog is not an advertiser on slowtwitch, we just enjoyed the clever message