this year will be my first year setting out a blind and i have heard that people have had trouble with leaving their blinds out and having them torn to pieces by varmint...coons mostly...and i have a lot of pictures of coons and possums around the area where i plan to set my blind. has your blind been tore up by coons?? do they tear up blinds? and if so how would i prevent it without scaring deer? thanks!