Jon Moss had a pretty interesting 90 minutes taking charge of Tottenham's 5-0 win over Swansea.
The referee made a rather questionable call when he gave Dele Alli a penalty to get Spurs' scoring underway, and he'll be relieved that Harry Kane's conversion from the spot didn't decide the result alone.
However, Moss will know there's no hiding from another of his big mistakes.
Kyle Walker tried to cleverly nip round Neil Taylor, as the speedy Spurs full-back does so often, but he paid a heavy price for it.
Perhaps the England international underestimated quite how bad Swansea have been this season, but he obviously wasn't anticipating this clumsy kick to the head from Taylor.
While it looks like a guaranteed sending-off for having his boot that high, remarkably, the Swansea defender escaped without any punishment at all.
It doesn't look like there was any malicious intent behind the 'challenge', if you can even call it that. Even so, Taylor was a very lucky man not to receive his marching orders.
Mauricio Pochettino looked so concerned about his own player's welfare that he walked way out of his technical area and up the pitch to monitor the situation.
The incident summed up the gulf in class between the two sides, with the visitors managing just one shot to Spurs' 28 and even that was off target.
Thankfully, though, no serious harm was done and after receiving extensive treatment off the field, Walker was able to return, albeit a little bloodied and bruised.
And all this in a season where referees are supposedly getting stricter and trying to stamp out undesirable elements of the game.
It's just testament to Walker that not only did he carry on for the rest of the game, he put in a typically composed performance to help the Lilywhites to only their second win in 11 games in all competitions.
Should Taylor face retrospective action? Have your say in the comments.
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