I still think about these brats at the pool, just 4-5 years younger than me (I'm 18), who, when I tried to speak in a moment of mutual incomprehension (I turned to them because I thought they were talking to me so we all looked at each other embarrassed), gave their best giggle over a tiny stutter, couldn't look at me without laughing, and simply left before I could confront them (politely, just explaining that they were making fun of a disability and that it was shitty behavior, but the fact that I couldn't do it still leaves me feeling like I failed at this moment)