[iliis]

Well, in that case a non-textured or reflective clothing could have a similar effect.

[bduerst]

Wouldn't LIDAR pick it up still?

[IgorPartola]

Imagine someone carrying a couple of two by fours they are holding vertically. They then stop on the sidewalk to check their phone at just the right angle. I am not really giving specific examples, as much as trying to illustrate that the way ML systems fail isn't by being slightly off from the intended programming, but by being really off.