There is a survey out that reveals why couples fight while on vacation.  It's a fact, almost 80% of couples say they have at least two big arguments when on vacation.  Some even go so far as to sleep in separate rooms. 

The number one thing on the list as to why couples fight is men ogling other women.  The second most popular reason as to why couples fight on vacation is when one wants to do something active and the other just wants to lay around the pool.

Other things that set couples off include where and what to eat, drinking too much, map-reading, spending too much money, getting to the airport on time and taking too long to get ready for dinner.

[Via:  Mail Online]