Bearish engulfing candle on SLV?

I rarely use candles because I am not a day trader.  I am much more interested in trends and support/resistance.  But if silver proxy SLV closes the day in this state candle gazers might let out a collective rut roh… might they not?

Source: http://biiwii.blogspot.com/2010/10/bearish-engulfing-candle-on-slv.html