Here's today's example:
"And make no mistake, the court is going to have a United States marshal in attendance at the graduation. If any student offends this court, that student will be summarily arrested and will face up to six months incarceration in the Galveston County Jail for contempt of court." - U.S. District judge, Southern District of Texas 1995.
This was a case regarding prayer before a school graduation. The judge applied this ruling to all forms of prayer (all religions), but a Christian prayer was at issue, and this is a clear violation of the free exercise clause.