approached to about promotions unwanted on my cell or computer?

So our task this week was to discuss if we had ever been targeted by a unsolicited promotion or offer on our cell phone or computer. Well my answer is no, though I am particularly careful as not to click on any pop-ups or spam I don't enter contests where I think my info is going places I don't want. The closest I think I get is spam by Rogers on my cell phone occasionally offering me deals on text messaging and picture messaging. A few of my IPhone apps have push notification on special offers and such if we want, but I always turn that off so it doesn't happen. I think I am of that older demographic that still doesn't trust the Internet with their money. I have entered a coke contest by a scratch card texting a code to a 5# to text to, but I did that once, and not since. I think part of the mistrust comes from those ads on TV for text such and such for ring tones or contest is you can see whats wrong with this picture or answer this ridiculously easy question, and lets not forget jokes of the day and such. All these have a charge and you keep getting charged until you request it stopped, sounds like a scam, so I think that's where my feelings of mistrust come from. So until they seem to become more mainstream or less spammy telemarketer like, I think I'll stay away.