Back when I was around six or seven, I remember tossing my master ball away because my bag was full, in order to pick up an item on the ground.
Turns out it was some useless freeze heal or something.
"La-la-la... They said I was much too loud when I practiced in my room. They got mad. Sigh... Now I'm sad. I'll just think about the past to keep my mind off the bad. Ah, yes, I'll do that..."