Swordfighting In Suburbia

I grew up being able to try lots of different activities.  I took lessons for ballet, tap, jazz, baton twirling, horseback riding, swimming, clarinet, piano.   My parents seemed to draw the line at competitive sports where I was concerned.  (Likely due to a few altercations with a field hockey stick and a girl's head after she clipped me in the ankle in 7th grade).
 
Last year before the divorce my daughter was in soccer, ballet, tap and jazz.  We had to stop all of that when the insanity broke out.  Lately I've been thinking that it is time to get her back into the activities that she enjoyed.
 
Enjoli - (on phone with ex)  Hi, I was thinking about signing Lucy back up for dance.  What days would you be available to pick her up should I need you to?
 
Mr. LO - Why dance?  Lucy wants to take swordfighting.  I will look for swordfighting lessons and see what I can work out.
 
Enjoli - She is a 6-year-old girly girl. Why would we ever sign her up for that????
 
Yup, thats right Mr. LO thinks a good activity for a 6-year-old girl in suburbia is SWORD FIGHTING.
 
I'm so SICK of his immature whacked out ideas.  This whole idea is because last year he got real interested in knives and swords.  He spent a lot of money on his "collection" - mind you he didn't have a job. This was just one of his collections. He also collected matchbox cars, star wars toys, rocks that he bought of off eBay that would glow under black lights, and who knows what else.
 
Luckily he can't afford the classes and I'm the one who is paying, which means I get to make the decision.  Sometimes it is good to have all the financial burden - gives me leverage with the nutcase.