Shamus, n. [Yiddish]: 
	A shamus is a guy who takes care of handyman tasks
around the temple, and makes sure everything is in working
order. 
	A shamus is at the bottom of the pecking order of
synagogue functionaries, and there's a joke about that:
	A rabbi, to show his humility before God, cries out
in the middle of a service, 'Oh, Lord, I am nobody!'  The
cantor, not to be bested, also cries out, 'Oh, Lord, I am
nobody!' 
	The shamus, deeply moved, follows suit and cries,
'Oh, Lord, I am nobody!'  The rabbi turns to the cantor and
says, 'Look who thinks he's nobody!' 

-- Arthur Naiman, 'Every Goy's Guide to Yiddish'

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