last minute momma

ok so at the beggining of the week my oldest runs up to me and says "Mom you need $10 so you can go on my trip with me on Friday!" "what trip?" I ask. (Believe me this isnt a stupid question being as though the trip slip information came home on the week that he was at his dad's. we alternate) So he continues on with on to the natural academy center or something. his teacher also happened to be standing in the yard at the time so i approched her and asked what my child was talking about. so she says oh we are going to the Constitution Center. (im looking at him with the side eye cause that is nothing like what he just said). Am i the only one this happens to? your child comes up to you with some last minute request  that you probably should have heard about weeks ago but they "forgot" to tell you? this can be very nerve racking at times. thankfully im a full time stay at home mom so i can generally adhere to such request like lunch from a particular store the nite before the trip or 2 dozen cupcakes that your child told the teacher they would bring in for a class party the morning of. but i ask this question to my parents that have full time occupations. how do you handle it without strangling your child to death? its definitely a lack of consideration on their part and just a flat out inconvience on your own.my mother sits back and laughs because she says i used to do the same thing to her. (this is not helpful at all by the way.) i dont know about you all but Denise's bakery has gotten a few of my dollars on a last minute cupcake run. what helpful trick or tips can anyone provide that will save us from the jail time that will follow from strangling our child with that one more last minute request. anyway good day people im off to make a last minute run to the corner store that makes really good hoagies for my sons trip today being as though thats what he requested last nite. pray for me yall