Please keep in mind, I stand around 6'1" and am both overweight, and powerfully built.
I went into a special programs classroom one day to repair the computer. It was a new program in the school integrating high function special needs kids, with a wide age range. The staff were new, and did not know me.
As I walked in and said hello, a little girl maybe 10 or so piped up "Wow, are you ever BIG!"
The staff looked like they wanted to die or crawl through the floor, except for the ones that looked somewhat terrified at what my reaction would be. I, of course, looked straight at the girl, and in my bestest, deepest scary voice replied "Yeah, and I'm meeeaaannn toooooooo" and bared my teeth.
Adults freeze. Kidlet looks at me for a second, laughs, and says "you're just like Shrek!" and promptly falls over giggling. I spent the next hour having kids measure how tall they were against my back, and reading stories in funny voices.
I knew the girl didn't mean to be rude or unkind. She knew I wasn't mean or fierce. I could have been hurt, it's what the adults all expected, but I am not like they are. I prefer to be more like kids are. Take things as they are said, and listen to what they mean, not the words used. Kids especially don't have enough words and meanings, they have a delightful honesty but also amazing acceptance if we don't get in the way of it.