Like a frightened turtle.

Here we go again, another frightened turtle. Do you remember the Seinfeld episode when George was changing after a swim and Jerry's girlfriend accidentally walked in on him. It was the frightened turtle line.  Well, a wildlife smuggler was just caught after Federal agents spotted a turtle peaking out of his trousers. They say that they first spotted" irregularly shaped bulges in his pants". 

 What I really want to know is, how are Federal agents trained on spotting "irregularly shaped bulges in one's pants"? Is this a job that requires experience? Does one need to spend time on a beach observing and learning? Are these federal agents considered specialists in pant bulges? So many questions so few answers.