For me it was a couple incidents in my early 20s. One was my step father finding a note on how I planned on killing myself by using a blender to blend up all the meds I had and taking them at once. The other incident was my roommates in a share house confronting me saying the saw my meds and didn't trust me around their kids just because I was prescribed meds. I got so mad I knocked over a table and cussed everyone out. I figured if I was a danger to self or others I better take meds. Though I did not know much about mental illness back then I knew hurting my self or someone else was not the way to go in life.