My BP does this too, you are talking about the fake plants with small bases and also suctioned cupped ones correct? The snake is a primative animal its intention is not that he is trying to mess with you, the issue is the plastic decor are not weight/base sturdy. Most of the fake plants weigh close to nothing majority of what I have are a pound or less and while the snake is exploring her weight and the fact that she is moving through the plants ect knocks them over. One option one of my friend does to avoid this is planting live plants in his tanks but that is more of a hassle than I am willing to undergo.