He said he broke up with his last girlfriend because she was beginning to 'crowd' him. [=she was not allowing him enough privacy and independence]
Her parents are concerned that she's been hanging out with 'a bad crowd'. [=with people who do illegal or immoral things]
He was never one to 'follow the crowd', so we weren't surprised when he dropped out of college to start his own business.
(..) These forces are highly trained, But rarely see action. Some have accused them of being too gung ho When called into duty, And their controversial crowd control tactics At the Simon and Garfunkel concert in ' Are still under investigation. I knew you'd find it, Mr. Elf! (..)2003 Elf