Here is a story to emphasize this. One day this last summer my husband was sitting in his chair out on the deck enjoying the view, when a wasp landed on his foot and started to nibble on a toe. He was able to wiggle his foot very slightly but the wasp flew up and then landed down again and started to crawl down between his toes. He said he almost went insane, but took the control and rammed his chair into the table onto the deck, and it flew away. Imagine if he was unable to even do that.