Another WGMG:
At my work when we change job positions we give a handover for the person stepping in so that they can ease in better.
Because I had a major job (2 full time positions because the other member is overseas at the moment) I spent a lot of time writing up a proper handover, getting print screens and step by step instructions for every single thing that has to happen. When I did the handover and showed them everything the boss was also in the background watching because it was the first one I've done..
Today I found out that yesterday the person stuffed up yesterday and instead of saying that they made a mistake and accepting it, they went down the path that I didn't give them a handover, I didn't show them what to do and I let the work pile up on them and sat around doing nothing. To the point that they were attempting to chase it through the chain for me to get in trouble.
Just glad that my boss and the one up from them both know that I did give a handover, I did everything correctly and are stopping anything before it damages my credibility.
So WGMG is when people can't accept that they stuffed up and show some humility, and try to pass the blame onto someone else.