Yes, I am very fearful chipping a tooth. Which is why I opt for acrylic.
My bouncy 2 year old has indeed caused me to hit my teeth with the drip tip a couple of times, all thankfully when I was using my acrylic tips.
I now rarely use the metal tips and never around bouncy children..
The fear stems from when a past friend decided to tip the large glass mug I was drinking from into my teeth, leaving me with an expensive chipped ceramic crown. (Crown is from breaking the original adult tooth in a skating accident)
Maybe I'll get a fancy wood drip tip one day.