Montgomery quit school at the age of 14 and went to work in order to help out his family.
Problems within his dysfunctional family led him to quit school at the age of fourteen.
He quit school at the age of 15 to pursue his profession in a top 40 band, but soon gravitated to jazz.
He quit hockey briefly at the age of 12, but his family talked him into returning.
He quit school at the age of 9 and found a job as an apprentice with a barrel-maker.
Serious injuries forced him to quit football in 1964 at the age of 28.
He quit both sports at the age of 16 to concentrate on swimming.
He quit school at the age of 17 to work as a stock boy in the garment district.
He quit football in June 2000, at the age of 34.
He finally quit the track in 1910 at the age of 32.