Some other things to consider for guys wanting to try the guiding game ...
Although the state DOES NOT require insurance, first-aid / CPR and the like ... only a fool would operate without them. My old roomate (guided here for about 30 years) has had two people suffer heart attacks in his boat ... one fellow made it, the other unfortunately didn't ... these people's lives are in your hands sometimes an hour or more away from medical help. Or consider the ramifactions of a lawsuit based on someone slipping on a slick floorboard in your boat???
Another thing to consider if you're going part-time (which most people of course do starting out) ... in nearly all instances, it is a "guide thing" not to try to compete with working guides on your days off ... some guides even feel that you shouldn't be on the river AT ALL if you're not working (this isn't always the case, but there are those that have this opinion) ... so there won't be any early starts for you on your days off ... you'll be expected to be one of the last on the river and fish behind those working ... so, if you like to fish on your own or with buddies, keep that one in mind ... good luck!
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Seen ... on a drive to Stam's house:

"You CANNOT fix stupid!"