im new and i just joined right now, but im going to try to get active quick, mine was when i was at the elite 4 and i got to the end, i was so happy i knew i could finish it, but right before the champion, i realized i had no more potions or berries to raise the pp, and the champion annihilated my team, i had no chance, and the worst part, i had saved before the 4th elite four but not before the champion, so not only did i have to fight a psychic trainer and the champion, but i had no items, and all my pokemon's pp were near 0. i had to start over.
another was when i was at the Oreburgh mine and i found an onix i was so excited, i had poke balls, i had good lvl pokemon, i was excited to catch it. when i got it all the way down to where u could barely see a red line, i tried using a poke ball, without even rolling once, it failed, i tried at least 10 poke balls, all failed and i had no more poke balls. i eventually had to kill it.i was poor so i didn't have enough money for poke balls btw