I like it when someone tries to drop me on an MUP while I hang with them, but no close enough to get any draft. A few years ago a guy tried so hard to shake me but couldn't. At my original pace, I was going to catch him and pass him. But when he realized I was approaching he turned it up a notch. I stayed with him and he kept dialing up the pace little by little each time he realized he couldn't shake me. I finally had to turn back for home to get ready for work. His ego must have been bruised.