NPN SMT Transistor with flipped Emitter and Collector
If you squint just right SOT23 looks a bit like an equilateral triangle...



So, flip it upside down, rotate it, and either bend the pins or just add big enough solder blobs... and you just swapped pins 2 and 3.



Relax, you're not the first to solder one of these upside down because you screwed up the pinout