One moment they're fine and dandy (if by "dandy" you mean "totally crazy")...
![](http://farm3.static.flickr.com/2139/2140777470_a5a82cb669.jpg?v=0)
Then, suddenly, timberrrrrr.
![](http://farm3.static.flickr.com/2233/2140777426_9a8c795e05.jpg?v=0)
Imagine how embarrassing that would be at the grocery store.
Once again, one minute they're on.
![](http://farm3.static.flickr.com/2311/2139992247_5f0405e3ac.jpg?v=0)
Then next minute they're running for the hills.
![](http://farm3.static.flickr.com/2403/2139992283_3812d9c8c4.jpg?v=0)
Consider yourself warned.