in my opinion, make sure you're set up before you apply the off or other skin lotions/sprays - i've heard fish don't like the smell/taste of that crap... who blames them..
secondly...
even on a warm day, you can wear clothes that cover you up as much as possible, and only have to worry about your hands and face... seems a great strategy for me, 3/3 times out this last week or so with long sleeves... no bites to show