We all know that a burger at McDonald's will never be as big or juicy as what you see in those lying advertisements, but here's a decent explanation for why.
In honor of National Burger Month (which is May), here's an old clip from a TV show about food ad tricks. Watch a peppy woman assemble a burger to look presentable for the little screen. There's some glue, some food dye, some raw meat, and a lot of pins. Do you feel betrayed yet?