It depends on the circumstances. If someone tells me not to do something or tells me I can't do something, I will usually do it out of spite or to prove them wrong. However, that usually comes about when there's a power play. If they're just telling me I can't or shouldn't because it's their opinion and everyone should bow down to them... that kind of mentality... meh. Nope. But, if someone presents a logical or heartfelt reason not to do something, I tend to be more mindful about whatever it is/ was.
If sum won tells me 2B a bedder speller (witch eye thingk is insigniphican't compared to the eye deas you ar trying to convey) than I will porpoisely mispell az much az eye kan, no wing that I am still getting my point across.
It depends. If someone tells me to take cover, there's a tornado on the way...I would. If my sister tells me I should stop drinking, I would tell her to bugger off.