NEW YORK (Wireless Flash) -- The world of wireless has made it possible to check your e-mail while taking a leak -- but that doesn't mean you should.

Technology etiquette experts say one should never check their e-mail while on a date or in the pisser.

In fact, that "faux pas" is No. 13 of 35 Things To Never Do With Tech in "Sync" magazine's June issue.

Other technology gaffes you should avoid include...

-- No. 23: ending an e-mail signature with a famous quotation -- especially one by Nietzsche.

-- No. 33: spending real money on weapons for use in a fantasy online game.

-- Finally, No. 30 dictates that you should never refer to a ringing phone as "blowing up."

The mag's full list can be found in the June issue.