This morning I was standing just to the left and 12' in front of the Push Tug in the photo. (Photo is just an example of what it looks like when we push back Planes from their Gates)
Standing between two Pratt & Whitney JT9D-7R4E1 jet engines while they're running at 30% power. Man, that's a cool feeling... just had to make sure not to walk about 10' closer otherwise I'd be sucked in and made into ground Beef.