Heard this from a former friend of mine who later on went OTD, became an ambulance chaser and is now a prominent lawyer.
While he was an ambulance chaser he was tasked with serving a summons to a Yungerman learning in Kollel for what he described was a “nuisance” lawsuit.
Armed with a picture of the defendant from when the defendant was in Yeshiva he went to the Kollel thinking that his Yeshiva background would help him pick out the correct person to issue the summons to.
When he walked into the Bais Medrash his mouth dropped open- the picture he had was of a clean shaven person- how’s he supposed to look around and pick out which bearded guy he’s supposed to hand the summons to without attracting too much attention that may cause the defendant to hide?
Soon enough someone came over to him, handed him a Yarmulka, and asked him if he’s Jewish and interested in learning about his beautiful heritage. Not wanting to attract too much attention (and he needed an excuse to stay there to look around) he “admitted” that he was walking by and stopped in out of curiosity about his background and was definitely interested in learning some more.
After chatting about Judaism for a few minutes the visitor was getting impatient but his “Chavrusa” had one more request- he wanted to help him do the mitzvah of Teffilin. While having Tefillin put on him he glanced at the name on the tallis bag only to see that the guy putting Teffilin on him was the very person he was supposed to hand the summons to.
He left without handing him the summons.