If by “fun” you mean think-your-heart-is-about-to-literally-explode and lie down in fear for 8 hours. (Source: have accidentally double dosed my amphetamine Rx

If by “fun” you mean think-your-heart-is-about-to-literally-explode and lie down in fear for 8 hours. (Source: have accidentally double dosed my amphetamine Rx. A 5x dose would probably be lethal.)