It is rude to treat mentally disabled people differently.
John is playing baseball as a pitcher when the next batter, Jim comes up and Jim has visible down syndrome.
John wants to decide what pitch to throw.
John decides to throw his usual first pitch, a sinking curveball on the outside corner.
John decides to throw a slow, easy underhand lob to Jim so that Jim can easily hit it.
Jim is impressed by the sink on John's curveball and is happy to try his hardest to best John.
Jim is annoyed that John doesn't take his athletic prowess seriously and is throwing him patronizing pitches.