Sometimes. At one point, I learned the power of anger - whether faked or real.
Sometimes I will boost the appearance of my indignation in order to shock people
into giving me my way. Usually though, I've inoculated those I care for by revealing
this.
I used to be something of a master of deceiving without making outright lies. Long
ago though, I decided that was essentially no better than lying. Now, I don't accept
even letting people believe something that may be in a light skewed in my favor.
Strangely though, I don't apply this standard to others: for example, I won't
point out an obvious scam to a stranger, but merely observe what is going on,
unless I am directly affected.