Is it alright to lie at times?

The problem with lying is that once you lie to somebody and that person finds that you are lieing then you loss your trust in him. This is because he thinks that you can lie in the future too and may be for things that are more serious. Lieing should be avoided except in life threatening situations.

My grandparents are constantly pushing this health food supplement crap on my mom. Don't get me wrong, I'm all for healthy foods but ....for example, they never drink plain water. The buy bottled water then mix this powder into it. It's all flavored but some of the flavors, like the apple cinnamon, has chunks of dehydrated apple. And it's supposed to add minerals and stuff to the water. Anyway, grandpa called while we were having a quick lunch on Friday and of course, asked what we were doing, because that's what people do... And mom said we were having a McDonald's hamburger. Of course, she then got an earful of fatty, not good for you, etc and so on. When she got off the phone, I told her, you could have said McDonald's salad and probably gotten off without a lecture. That would be one situation where lying would be okay because no one is going to get hurt by the lie and there is next to no chance of the person being lied to finding out that you lied..... I can't think of any time where I lied and felt good about it. I have lied and been relieved that it worked. I work in an embroidery shop and it's always a giant relief when something goes wrong that was totally because I wasn't paying attention or did something wrong but I can blame it on the machine and get away with it. The other lady who works there too, accidentally sewed a shirt together last week. She tore out the stitches while the boss was out running an errand and when the boss returned she told her that the machine "bird's nested" (which just means sucked a whole crapload of thread, and sometimes part of the shirt, around the internal workings, resulting in a gigantic mess and in some cases, a hole) and got away without being yelled at for sewing it together.