I haven't read all the other comments except the last so forgive the redundancy if thats the case. NO ...You're NOT crazy for thinking he's a selfish asshole. What the fuck was he thinkin????
UNFAIR ...really...WFT ...running an errand for his sick kid is unfair.... What is he 8. God I Hope the prick never gets sick. I can't comprehend this.
The most worrisome part of this is that you needed to ask the forum to validate this for you. I hope things haven't been twisted so that this type of shit becomes accepted. I'd keep a close eye on this type behavior....some people find it easy to blow off their kids events to satisfy some urge of the moment.
Good luck to you D