"Those icicles look dangerous ..... like spears just waiting to get ya!"
more often than not, you just hit them (accidentally) with your head & knock them of, you would probably have to be lying flat on the ground & have 1 fall off & come perfectly Straight down to hurt you, it can happen though. what happens far more often is that all that weight hanging off of the gutters will often pull the gutters down off the house.