Eddie Bryant said he didn’t think a long time before walking out on the gym floor for an impromptu dance with daughter Polly during Haines High School graduation ceremonies Tuesday.

The Bryants’ dance came as seniors James Morgan and Grace Jones sang Billy Joel’s ballad “Vienna.” The father and daughter soon had company, as a half-dozen other parents came out of the bleachers to dance with their children in the graduating class.

The unscripted scene…