Smoking male plants most likely won't do anything, or atleast not much of anything, but making food or hash with them WILL definitely work and WILL definitely get you high. Last time I grew I was lucky and only had one male plant to get rid of.... it was probably 2-3 feet tall and mature with pollen sacks all over, but none had opened yet. I figured throwing it away would be a waste, so I tried to do something with it. I was too lazy to make cannabutter or hash at the time, but wanted to try something out anyways... so, I stripped all the leaves and unopened pollen sacks off the plant, leaving only the stems/branches, and I chopped up all the leaves/pollen sacks really finely, and then I mixed that in as if it were a spice or something in a tupperware bowl with zatarins rice mix, water, and butter..... you need water and butter in the rice when you microwave it to cook it anyways.... so I just put a little extra butter and stirred it all up making sure most of the leaves/pollen sacks were stuck in the butter before microwaving so that most of the THC would dissolve into the butter and become active. At the time, I wasn't sure if this would do anything, but about 45 minutes to an hour after I ate a small bowl of the rice, I was high. It came on slowly but lasted a long time and was definitely strong. I ended up eating the rice I made for about 3-4 days and got high every time..... best part was, it actually tasted good and the plant material was chopped up so fine that you couldn't even notice it while you eat.... just like oregano or something....... but ever since then, I figure you should atleast try to do something with the males.... might as well not waste them if you're going through the trouble of growing plants.. definitely don't let them pollinate the females though