I use autocad for architectural projects, and all the time I draw lines with round length (except of course diagonal lines or arcs), with a precision of centimeter so no smaller than 0.01. Sometimes when I snap to a point, for mistake autocad snaps to something very close, so close and small that I don't realise soon this mismatch. The problem is that usually I discover the wrong length much later, when I have already spread this mistake across the drawing. So, can you suggest me a script which gives me an allert when a line with a length smaller that 0.01 has been drawn?