adjoining communicating communication connected directions informing items letter-box Letterbox letterbox-slots letters mail mail-box mail-in New numbered post post-box postage postal snail-mail banned celibacy celibate chastity data forbid forbidden funny human illegal info information love no sex pregnancy pregnant procreate.sperm roadsign sex sign signs street test virgin virginity warning advice announcement announcing limitations limited no-advertising request unsolicited unwanted white arrows black circular curved directing direction directional give-way indication indicator red reflective roundabout speed reduction street sign traffic traffic flow triangle triangular byte card card-reader computer connector digital electronics equipment flash hardware industry memory micro plastic plug reader slot stick storage technical technology transfer usb appropriate behavior appropriate behaviour directive give way road sign rules safety abstract background banner blurb copy space design event graphic header headline history ideas isolated label media newspaper notice pen poster scrapbooking words World write blue pattern alert be careful beware car care careful cars caution danger drivers lookout observant observe pedestrians security vehicles watch watch-out yellow brown watch out brick texture