Do I cause others to stumble? (Mark 9:42)

I wonder sometimes about my conduct, about how it has impacted other Christians. Has my gossipping, temper, the odd cursing and poor jokes caused others to stumble? Has it resulted in someone saying if he can get away with it, so can I?

Mark 9:42
New International Version (NIV)
Causing to Stumble
“If anyone causes one of these little ones—those who believe in me—to stumble, it would be better for them if a large millstone were hung around their neck and they were thrown into the sea.