regarding the special olympics this is what I found on wikipedia...
"The Special Olympics was founded in 1968 in Chicago by Anne McGlone Burke, a physical education teacher with the Chicago Park District, with the support of Eunice Kennedy Shriver, the sister of President John F. Kennedy. Burke began with the idea for what was originally supposed to be a one-time Olympic-style athletic competition for kids with special needs. "
There is much more, but this paragraph said where it was started.
And about Jerry showering, now that I think about it I've never seen him either.
But surely he does, the other HG's complain about him not washing his hands. They would probably raise hell if they knew he didn't shower.
Maybe BB is sparing us that sight.