Massachusetts ? C. Yardley Chittick sneaked off school grounds with Humphrey Bogart and other schoolmates, but Phillips Academy on Saturday let its oldest living graduate off the hook.

Attending his 90th high school reunion, the 107-year-old grinned from his golf cart at the head of the Andover, Mass., school’s alumni parade.

A 1918 graduate, Chittick, of Concord, N.H., also received a pardon from the school for some long-ago schoolboy mischief.

At a ceremony in the school chapel, Barbara Chase, the school’s head, read a resolution from Phillips Academy’s trustees that paid tribute to Chittick’s life and service to the school.

It also noted that Chittick wrote in a 1918 diary entry that he’d sneaked off campus during a spring night with friends, including Bogart, to watch a fire in North Wilmington. The group didn’t return until 3 a.m.

“Now therefore, be it resolved that the trustees of Phillips Academy do hereby cancel all punishments long overdue for that escapade,” the resolution read.