Well, it's not *supposed* to, but it's not *not* supposed to either. That's most likely down to your keyboard - unless you have an expensive one, it'll stop reading new keys when you're already holding down too many at the same time. There's nothing that can really be done about this, but I think it's a really effective part of the metaphor.
Being unable to give certain answers and keep it together, needing to let something momentarily slip in order to answer appropriately even when you know what it is you’re supposed to say… and then you say the wrong thing five seconds later, adds another layer of stress, and it becomes impossible not to have a meltdown…
unless you have the means to get therapy and prescriptions just so you can hold more buttons at once