K.M.
My 20 month old, and now my 10 month old too, are BIG climbers. My daughter had to be put in a toddler bed at 10 months because she started climbing out of her crib at 8 months. I am sorry to tell you, it only gets worse if your son is truly a "climber". I have a couple of comments. First, we started time out with my daughter at 11 months. She is now 20 months. Best discipline we have found. The trick is to use the same spot or chair everytime. Put is somewhere that is not isolated, but where they can't watch tv, play, etc. Pediatrics standard recommendation is 1 minute for every year of age. So for the fifteen month old it would be just over a minute. Now we can say, do you want a timeout, "no" then we tell her what to do so she doesn't get one she responds "kay" and acts right, most of the time. As far as climbing, what worked for us is get something that is not as dangerous to climb on (ours is a little tykes table and chairs). We don't encourage her to climb on it, but we don't correct her if she does, everything else is off limits for climbing. If she falls off it, she will get hurt, not injured like if she fell off other things we have found her on, like the entertainment center! Hope it helps