i have had my blind out for over three years and no problems yet.i am very careful to look inside before i enter.the only problem i have had,is mice after crumbs or crackers i have left where they could get to them.i learned to take a plastic bag and put any food,plastic spoons,forks,salt,pepper etc. and hang it above the door opening inside.i keep canned goods and a stick of crackers in mine since i stay all day most times i hunt it in bad weather.