The number of commercial airline accidents that can be attributed to alcohol are thankfully very few-statistically insignificant-but anyone who shows up for duty with an appreciable amount of alcohol in their system deserve all they get.
On the other hand, according to the NTSB, of all the airline accidents attributed to pilot error, about 20 to 30 percent have fatigue as a factor.
A flight crew`s performance during a 05.00 approach, for example, is roughly equivalent to operating with a blood alcohol level of .08 parts per thousand.
Perhaps the hotel employees should be told.
If you require verification of the above you are going to have to look it up yourselves as I am too tired-there are thousands of pages so good luck.