Hog Hunting

[eman]

My buddy has decided that he is going to do the trap method. They don't live on the farm and usually only go up on weekends .
He is worried that as hot as it is that a hog getting in the trap on monday won't survive till sat??? How many days do y'all think that he can wait between checking the trap ? or,should he just wait till it starts cooling off to set trap(s)?
He dosn't hunt the property so he can trap anytime.