Words speak more than what they are intended to..

We talk 12 hours a day, 30 words a minute..that is 30X60X12=21600 words a day..it extrapolates to 473040000 words in our lifetime of 60 years...
Is it humanly possible to make sure that you speak the right word in the right context at the right time?
I am not very sure. We all try to be as politically correct as possible.
We all try and make sure that the person we are conversing with feels comfortable...but can you always achieve 100% consistency?..
Atleast to acquaintances, new people and official clients/customers, we are careful to meet the standards..but when it comes to our friends and close ones...we relax our rules and in that process, there is a high chance of a slip-of-the-tongue...which is going to make
a-hell-out-of-the-issue!!

Taking this into consideration, I believe we should not give any more respect to the word a person spills than what it deserves. You know the person..you know what he intends to say..you know what he means..then why should 'a word' or string of words strain a good conversation.
The person might be inarticulate, he/she might have a scarcity of words..infact each person has a different intensity scale for different words..
The word 'Thank you' means to someone much more than some other..
The word 'Stupid' hurts someone more than some other..
we have so many examples...

with so many clauses/causes/clashes, I sincerely believe that a person should not be put in trial for a word that he spilled!

after all, they might not have meant it