Some of the shops that sell bubble tea have badly designed bubble tea straws. The straws have flat ends at both sides so it is hard to pierce through the plastic cover of the cup. If we use to much force, the bubble tea will spill. The solution is to use straws with sharp ends at one side, like the picture below:
This is a badly designed jug. The spout and the handle is on the same side, so if there is hot liquid in the jug, it may scald the holder. The solution is simple, place the spout on the other side of the jug!