Do not worry when Satanic insinuating thoughts (wasaawis) come to your heart. Ignore them. Dirty and obnoxious, as they are, you are not accountable for them. Just think as follows. We are sitting here. Suppose two pigs wander into the room. They'll look for filth here and there and, finding nothing, they will leave. Similarly at the arrival of Satanic insinuating thoughts keep doing your work-bothering least about them.