Instruct: Classify Amazon reviews into positive or negative sentiment
Query: What can co wrong with a simple cocktail shaker?

Well, a lot, surprisingly.I just made my first martini so take my review with a grain of Lemon Twist.First thing that went wrong: while shaking the ice and cocktail mix, the thing froze on the outside, bad enough that the ice stuck to my fingers. Why not make the exterior from some rubberized material?And way worse: the cap stuck. When I attempted to pull the cap off, only its metal shell came off, and the plastic cap remained stuck. No amount of manual twisting (bare-handed, or with a towel) was enough to remove the cap, until I donned a rubber glove for better grip. This is not exactly acceptable - why not make a screw-in cap, like most bottle caps?See customer images for what this affair looked like.I'll return this to BevMo (which BTW sells it for double the price on Amazon).