I know you guys are probably modeling off original rsc, but It would be great to get a "You're too tired to #{smith/fletch/make a potion}" message when you're performing an action that require consumables.

e.g.
When cooking (or mining/fishing/wc), it auto stops you from performing the action and you don't lose the exp (and the consumable) to the void.

This would be particularly important for smithing and fletching where the items required are so scarce to start with. Not paying attention you can easily "over smith" beyond fatigue and lose a lot of valuable exp. Also to anyone who thinks you should just "pay attention" everyone slips up. If you're making mith arrows, and you slip up, you can lose 25k exp in one hit. For a skill that's so damn hard to gather the resources for, that's too much.