the giraffe looks at the rabbit, looks at the joint, tosses it and goes off running with the rabbit.
they then come across an elephant doing lines of coke, so the rabbit again says "elephant my friend, why do you do this? think of your health. come running with us through the pretty forest, you'll see, you'll feel *so good*!"
the elephant looks at the rabbit and then the giraffe, who's evidently having an okay time, then down at his mirror/razor/etc. he tosses the paraphernalia and follows the other two animals on their happy trek through the forest.
the trio then come across a lion who's just tied off his arm and is about to shoot up some smack. again: "lion, my friend, why do you do this? heroin is *bad* for you! come running with us through the sunny forest, you'll love it!"
the lion looks at him, drops the needle, unties the belt from his arm, and then proceeds to beat the living shit out of the rabbit. as the giraffe and elephant look on in horror, they inquire "lion, why are you doing this? he is merely trying to help us all!"
"that little fucker makes me run around the forest like an idiot for hours on end every time he's on ecstasy!"