Oof
After lurking on r/wrongnumbertexts for so long, the OP was probably dreaming of the day that they would be an active member of the community. Well, that day finally came! They received a text from a total stranger who was looking for Mike. Bee tee dubs, OP is not Mike.
After going on and on about what sort of fun they could have with the wrong-number text, they ultimately wound up doing nothing. You see, it’s not that easy coming up with hilarious replies on the spot. The texter apologized for the wrong-number text and dropped a huge bombshell—they wanted to tell Mike that their sister had passed away. Oof. The OP probably felt like a jerk right then and there.