A few years ago, my mom was bit by a rattlesnake after accidentally stepping on it.  I wondered how she didn't notice it on the sidewalk.

Thankfully, my mom is a tough lady and survived the bite, but the following video reminded me of my mom's encounter with the snake and how old people don't seem to know what's going on around them sometimes.

Watch this couple leave their home without noticing a bear on their porch.