Unless you really like obnoxious farting, you'll be well-advised to stay clear of the Phuket airport area.
A few days ago, I picked up a dose of Giardia, after my cleaning lady went to buy a Thai salad for me from a new restaurant at the nearby beach.
'Charge him 100 baht - he is a farang' said the restaurant owner.
'No way' said my cleaning lady ' I am paying the correct price of 50 baht for him'
Whereupon the restaurant owner went out back and came back smiling with the Thai salad in a bag.
Although it tasted ok, I went down with Giardia (small intestine infection) the next day, usually due to eating fecal matter. I've never caught Giardia from the regular restaurants there.
Since I don't usually binge on eating turds, I assume that the restaurant owner stuck her finger up her backside and wiped it on my salad...
I can tell you that the foul smell of farts and liquid shit has caused a major evacuation of this area. Expect long delays and issue of gas masks if you fly into the airport.