Your brother-in-law is going to have an experience he’ll never forget, marching in the Rose Parade. I marched in the 1987 parade with my H.S. band and it’s quite amazing and tiring. It’s a five mile route. I fell near the end of it after tripping on a street reflector.
I know what you mean, I marched it in Jan 1980 as a member of the Ohio State University Marching Band. And regarding you tripping - it could have been worse if you know what I mean - many horses in the parade.