Add your own IP address to the IP Exclusion tool. Whenever you search for keywords, your ad won't be shown so it won't count as an impression - yet it will add an impression to your competitors. As you don't click their listings, it will narrowly effect their CTR negatively and indirectly help you.
Thanks for the tip! Although I will run a search on Google to see if my ads are running and what position I have. I knew that this affected my CTR, so I'll take your advice. Thanks!