下一次遇到类似的情况，你可以跟对方说：如果我送东西过来造成了你的不便，我很抱歉；but

but I am not comfortable with you saying I am lying. I feel being offended.

对方也许位置比你高，但对人尊重与位置高低无关。别人不会因为你退让而尊重你，但是会因为你自我尊重而尊重你。

you have to stand up for yourself and make this clear.