"Ugh, I've gone so far into Viridian Forest - do I keep going forward, or head back, heal, and backtrack? It's so far away. Fine, I'll go back and heal, but damn it, this is going to take forever! My Pokémon is at half heath, but they should make it..."

[Queue wild battle theme - your Pokémon gets poisoned by this fucking piece of shit, and you have no Antidotes, and your Pokémon faints before you can heal it...]

*The last Bug Catcher enters the chat*