I never felt the bite,intill 7or 8 hour later,after I finished cutting for the day,It was time to go home,but I felt something was not right with me,dry mouth,heart racing,the bite started to itch which was on my chest,a burning feeling at the area of bite and ran down my left arm,as i'm driving home I'm trying to talk my self out of it,like it's all in my head.then it hit me it felt like someone had me in a big vise,it felt like all my veins where going to pop!but my air way was fine,I prayed! and pulled over in the next drive way .and asked for help and called 911,went the Er, they said i was bitten from a brown recuse ,I don't know because the two holes are 1/4 inch apart! almost like a snake bite!I'm glade to be alive.the bite wound did not ulcerate everthing healed up except the bite marks which are like bilters now! the ER put me on antibiotic,antihistamine,histamine -blockers,and stairoids, somthing so small can do a lot of damage! so guys and girls shake them shoes and shirts from time to time,you never know!