Ah North Dakota were there is no scorpions or blackwidows. Only a cloud of mosquitos in the summer and bitter cold in the winter.
I work in an shed no heat no cooling and basically open to nature. But I have never had problems like that with insects. I suggest a can of Raid. As for the fire extingusher. Its a handy thing to have. I have two and although I haven't checked them in awhile its a nice to see them hanging on the wall. Specially when grinding away bolts well playing with 30 old gas ,carb cleaner, brake cleaner, sea foam, and few other explosive material. Safe maybe not but an adreline rush yes.
One last thing may I suggest a hose of sorts accesible just in case something big goes down. A fire extingusher won't ruin things but likewise sometimes you just need a little more.
