Am I strong enough?

So I'm still at the office. We are remodeling, my boss is laying hardwood floors. I am tired and want to go home (got up at 4 to run my 18 miles). So I took it upon myself to unload the remainder of the planks from the truck. As I carrying box one of 9 into the office, he asks "what are you doing?" I said - Unloading the truck. WITH the boxes in my arms, almost in the office door from the parking lot - he says "Are you strong enough?"

Earlier today, I was carrying the chop saw to set it up - it's a commercial one, with a table and I was moving it. The guys that work next door - asked if I needed help - HECK -I was DOING the job already just fine.

I'm just entertained by this. They know I run, they know I workout, they know I lift weights - but yet, they all think I needed help. If anything I may only have needed help because I'm short and the planks were longer than my arm span, the saw was awkward and odd shaped - but silly boys.... am I strong enough?! LOL