Where'd Angry Running Guy go?

Callum Hanlon wonders what happened to the "angry gladiator-looking man" who would curse out anybody who dared look at him as he lumbered down Comm. Ave. by BU:

... I miss the way that you scream "Get the **** away from me," whenever I try to address you in any way, shape or form. I miss the way you wear those weights--especially that bullet-proof jacket looking thing--all over your extremely fit body ...