<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by worldbanker:
When I fly transatlantic, I catch up on all of the movies I had been wanting to see. Therefore, I just tell them I'm going to the movies. It was great returning from Hong Kong and watching Crouching Tiger, Hidden Dragon on the plane while it was still in theaters in the States! 
</font>
I see the mileage runs as an opportunity to get away and catch up on my reading. I also see it as an opportunity to do some plane watching and see how airports are lay out, and also observe how people work in airports.
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">
Seriously, silence is golden as I have gotten in hot water at work for my mileage runs, especially after directors announced a "everyone will fly coach" announcement. 
</font>
Why would you get in trouble if you're traveling on your own cents? Or upgrade with miles (if on business trips)??
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">
Petty jealousies set in and I have come to learn to only discuss with others who understand the thrill of mileage runs and see past our trip as a goal to attain- whether it is a free ticket to Hawaii or requalification for Platinu. MasterCard should do a commercial about the priceless issue of frequent flyer perks.
</font>
I don't tell about my mileage runs to anyone except a couple of friends. Everyone would think I'm just crazy.
My main reason for doing mileage run is to get at least the middle tiers (Premier Exec), so when I do real travel, I'll be ok in case of problems. And of course upgrades.