I feel your pain Jack.
My wife has those certain "triggers" that set her to giggling uncontrollably... One of those times was when I wore the shorts to "just" do a quick inspection... the other time had to do with testing a brand new electronic dog training collar... I have never been able to put on shorts without her giggling maniacally, so I stopped wearing shorts... And, when I had to get the collar out for a particularly stubbern dog I was training... So I got out of raising English Springer Spaniels...... Dang woman still manages to think of those two times at least once a month...