What's the statute of limitations for being PO'd at my ex for giving my son high amounts of caffeine?

Tldr: ex is mad at me for being mad at him for giving our son almost an entire can of Mtn Dew and a bag of chocolate coffee beansI was picking up my 3 yr old son from his dad's. He tells me, "Good luck with getting him to bed tonight. I caught him drinking my Mtn Dew." I tell him he should be more careful, blah blah blah, whatever. No big deal. But then he tells me, "Yeah, it can't be as bad as the night I sent him home with you after my friend's and I loaded him with caffeine." Cue WTF face. He starts laughing. "So do you remember that night a few months ago when you called me at 3am because he wouldn't go to sleep?" I vaguely remember something like that but a lot has happened in the last few months. I urge him to explain himself."Well the guys (his D&D buddies) were over and thought it would be funny to see how he reacts to mtn dew, so we poured some in his cup. He loved it!!" What. In. The. Actual. Fuck. He's laughing even harder now. "Yeah. And then, so&so had a small bag of chocolate covered coffee beans. I tell you, he ate those up!" I start, well yes, bitching, because that is so f-ing irresponsible and DANGEROUS!!!"Well we did feel bad when you called that night crying because he was so hyped up. We'll never do that again." I'm so pissed I can't even think straight. He tells me it's no big deal. Obviously he's fine. It didn't hurt him. Why am I being such a bitch about it? Etc. I call him a moron, grab my kid and leave, absolutely fuming.So please, for the love of all that is holy, tell me I'm not being a psycho bitch for being pissed that my moronic ex gave my son almost a whole can of Mtn Dew and candied coffee beans. Actually, if I'm in the wrong here, let me know. Obviously I'm going to have to get over it because it's in the past. But giving a 40 lb kid that much caffeine can't be good for his body, right? via /r/Parenting http://ift.tt/28TK0Ib