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My dad was a GM master mechanic and he had multiple sclerosis and was in a wheel chair by the time he was in his early forties. As I was still learning to be a mechanic (and honestly afterwards) I'd often consult him about the vehicles I was working on. He enjoyed the conversation and I appreciated his knowledge. Now that I'm sidelined I find myself in the same position. My middle son is having car troubles and he's consulting with me rather than asking for my direct help like he'd normally do. I have to admit this entire process has made me more appreciative of my dad's circumstances and I've found myself thinking if him more often.