Has Skype been giving you problems lately? So you are typing in a multi-language conversation and suddenly words get changed and now it appears wrong. The thought is there but for sure it’s auto spelled incoorrectly.
Most likely you tried to turn this off but you couldn’t find how so you just gave up. It happened to me, and finally I found the right place to turn this off.
Go to EDIT >> SPELLING AND GRAMMAR
Then un-check all the options you want off.
Easy right?! But who figured it was on the EDIT menu and not on the main preferences!