moon,
like tt better... he can learn to rinse his mouth... bel also sometime like tt... but i don mind... cos after brushing her teeth, she also will play water this way... actually when they spit out, some water also go down the throat... should be ok... or u give him sippy cup? maybe he is sick of the straw already? i always switch different bottle of water bottle for her... sometime sippy, sometime straw... sometime i just put a yakult straw and let her drink from the cup...