Heads are of little consequence and so are nuclear bombs

I've begun to notice a familiar scene on the many streets and in the many buildings of Thailand. I suppose it could be Thais trying to sell me trinkets, Buddha statues or even pictures of the King - but they are quite what I have in mind. I am talking about cockroaches.

I took an excerpt from wikipedia about the common roach:
"The cockroach is also one of the hardiest insects on the planet, capable of living for a month without food; being able to survive even on the glue from the back of postage stamps.[2] It can also hold its breath for 45 minutes and has the ability to slow down its heart rate."

Gross. Why is the cockroach endowed with super-human abilities?

So why am I discussing the rat of the insect kingdom? Well, three nights ago I was in a restaurant three stories high and was in mid conversation. I had obviously seen cockroaches around Thailand, but regardless of their speed, they were restricted to ground movement. For whatever reason, I decided to look at my watch just in time to notice a moth fly over and land on it. Closer examination of the "moth" made me realize it wasn't what had actually flown onto my arm, but rather a cockroach one and a half times the size of my thumb. It stared at me as if to say, "hey, this is my watch now." Needless to say I shrieked and launched the roach off the third storey balconey, although it probably just flew off.

Seriously though, don't they have enough mass terror potential without being capable of flight?

It's bad enough that we have cockroaches running around dark areas of our houses, sewers and alleyways. Now I have to deal with flying beasts that obviously want to steal my watch.