With a dodge, then a Tail Whip

Following your command, Charmy evades the attack and responds with a Tail Whip.

"That won't stop us! Tackle them again, Evee!"

Evee then races towards Charmy and rams straight into his stomach. That attack, combined with the beating he got before proved too much for him as he fell to the floor with swirls in his eyes.

"Alright!" Blue says as he returns his evee. "I am the champion! and always will be! To prove that, I'll get a map from my sister and become the pokemon master! Don't try to get one too, Red. I know you need it, but she'll never give you one!"
"Red, Gramps, smell you later!"

After that horrible utterance of annoying garbage, Blue walks around you and exits the lab.

"Don't worry Red," Professor Oak says as he walks over to Charmy, "I have something just for this occasion." He pulls out a spray bottle from his coat and sprays Charmy with some special substance. Almost immediately, Charmy's wounds fade and he gets back up on his feet.

"There we go, good as new." Professor Oak comments as he returns the spray bottle to his coat pocket.

You then pick up Charmy's pokeball and allow a beam of red light to shine from it onto him. Although, once it reached Charmy, the beam broke keeping him outside his capsule!

"That's rare! It appears your pikachu doesn't like being inside pokeballs! You see, pokeballs are invented so pokemon who don't like being in there don't have to. No one should ever **** any pokemon to do something they don't want to! However, most pokemon don't mind being in there; only a few personalities disagree to being in a pokeball. Your pokemon appears to be one of them!"

You have a nervous look on your face from the thought of letting the guy out in the open. "Like I said before, don't worry! Even outside their pokeballs, your team will still follow and respect you. I'm positive he won't try anything against you."

You look at Charmy to see him responding with an average face, somewhat confused on his suroundings. You grudgenly accept the assurance and head off to the door with Charmy following you.

You exit the lab with a pokemon with you (finally).