Been there, done that. Felt guilty for 2 different reasons. 1). felt like the only reason they gave me permission was because my buddy was there and had he not been there they woulda told me no. 2)., felt because my buddy found the spot, I should not take advantage of it and hunt there without him. Both in my opinion, legitimate reasons....at least until know for sure the landowner is good with me being there by myself and that my buddy is okay with not being with me. Both of these are situations where once I was the buddy, and someone I thought was a good and conscientious friend took advantage of me letting them hunt with me on property I found and got permission on. Go to hunt and find them in my stand and their buddy in theirs. Show up to hunt and the landowner tells me no more thanks to something that friend did, like bring his buddies, wound/waste game, leave garbage, trim trees for shooting lanes without permission, etc. That friend had no other places to hunt so burnt out the spots I showed him making worthless to me. Don't be that guy. Be the guy that for every spot your friend finds, you find one two. Go by yourself and help out the landowner, buy them a Christmas thank you box, etc., just so you and your friend can continue to hunt there. Respect stands and favorite spots your buddy has shown you and don't over hunt/harvest them, so he too can enjoy them without you too. Sometimes permission s given with conditions, some implied, some direct. If you have doubts, make sure. Your hesitation to hunt these spots, tells me you are most likely not "that guy" already and you are probably being over sensitive to the feelings of the landowners and your buddy. But that's much better than being the other way around. Make sue the landowner knows your vehicle and it's license plate number. For the first few times make sure you stop/call and let them know it's you before you hunt. Ask your buddy if he wants to go with you before just going. After a while you'll know when it's okay to just go..