Without a doubt the sharp edges on these signs can be dangerous if rubbed against. If your sign is going to be placed in a location that prevents this then you have nothing to worry about other than handling the sign with care during installation. Alternatively, we offer a 'Rounded Corners' option in which we'll cut the corners at either a 1/4' or 1' radius to eliminate the dangerous corners and provide a clean look to your sign. This is an affordable option that can be selected on the design tool.