She sounds a lot like my daughter (who is seven now), although she never was one to get into things really. I agree, extra watching plus locks might drive the point home. DD would, however, toss whatever sensory thing we have her all around, no matter how we discussed not throwing the rice or quinoa or whatever all over the patio but playing with it in the bowl etc. I ultimately just had to be on top of her then. Also, lots of more appropriate stimulation helps-- we baked together a LOT, we crafted a LOT, etc.
But the tantrums! I've heard it from so many parents of gifted, "it's like a switch." DD for sure was like this, lovely twos, then huge tempests of emotions. We finally figured out being alone was what helped her switch it off. Now she can remove herself and go read before blowing up. She got over the fear of men, too, which I'm sure we'll regret when she's older
