While testing our autonomous mode on a slippery linoleum floor:
Me: "It's slipping too much... I don't think its gonna make the turn.."
<robot now doing 13 ft/sec coming about to cross fifth line>
Other guy: "Yeah it will, it's just your perspective
Me: "Dude it's gonna hit the column..."
Other guy: "No it w...."
<robot hits column without bumpers>
Me: "Whoa... so that's what's inside these columns..."
-q