Why are you arguing? It happens. Fact. If you haven't suffered it yet, you're lucky - but you will.
This is the first example that came up on google, though there are many of others and there have been plenty on here too. http://www.thaidphoto.com/forums/showthread.php?t=268035
This is helpful advice, freely given, but you're just dissing it. Suit yourself.
Absolutely correct.