Juggling remind you of creepy clowns and tired children’s performers? The Shoebox Tour is out to shake up your world. Complete with a juggling manifesto, the wandering troupe has dedicated itself to “contemporary and experimental juggling performance and techniques”–a cutting edge possibly sharper than chainsaws. Hosted by Aloft Loft (2041 W. Carroll), home of El Circo Cheapo, the free show starts tonight at 8:30.