My g/f seems to tolerate my hobby quite well. She knows everyone has to have their "thing". She probably figures it's better than me going to the bar doing who knows what, or drinking, or being a couch potato, or....
However, she said she wanted to go with me to the track sometime. She might not enjoy it as much as I do, but she's making the effort, which is a LOT more than I can say for most girlfriends/wives.
My wife thinks the rcs sound cool when you smack the steel building with them... Otherwise see really does not mind me playing with them. It is her fault, casue she bought me a cheap one for christmas 3 yrs ago, and that is when my fixation started.