A Trick

I was watching a live video of Love Like Blood - Blitzkid, and part way through the song Argyle Goolsby unstraps his guitar and plays it more like and upright bass by throwing his guitar in the air and catching it on the right note, and dropping it and catching on the right note. The bass is only supported by his left hand, so I'm thinking, "that is freaking awesome, I'm gonna have a go!" so i have a go and within about 60 seconds my left arm has died and I can hardly play the simplest of bass riffs. Need to practise this, because showmanship is key.

The Video: