Background: Couple I know (genuinely) split up. Quite quickly they were spending lots of time together again for 'the kids' and sleeping together. After a few months they got back together. The DH is self employed and the wife claimed as a single-parent when he left.
The DH moved back into the family home but they did not declare this for 12 months. A year or so after officially being a couple again and not claiming benefit anymore, they got investigated for fraud on the basis that they never really split. Because they actually did split up and had evidence of this, they were able to fool the investigators.
They now refer to that year that they were 'saving' though I only know of a lavish holiday they had, nothing more that savings would be used on and general brags regarding designer items and #blessed.
The DH business does well but the wife claims how he is self-made and never had any handouts. Posts similar on FB. Really bugs me as she thinks they are superior but seems to forget the 12k+ benefits they fiddled...!