Just, by accident, drop a 45 or a couple of lighter 10lb plates around your area. The noise along tends to scare the weak hearted away.
Speaking of other forms of working out; Indian clubs, etc: Funk 51 probably know something about chest pulls or expanders. Remember reading about their use in the last century. They were popular in Europe and England. Had regular strength pulling contest, getting to over 200lb test pulls, etc. Don't know if they do that anymore. Could be steel springs or even rubber thick band types. Actually not a bad idea for the average guy to get some kind of work in. Though kind of limited to what exercises you could. In those spring contest a version of the one arm press was big, if I remember right. Don't even know if they sell then anymore in the US. Interesting though.
Bill March reminded me of one of the better exercises to improve the overhead press. The handstand pushup, with the hands on a pair of higher blocks to give more range to the movement. Feet held by a partner or have the feet leaning against a wall. Seen a lot of gymnast improve their pressing motions that way. Also add size. Can try tiger presses that way for outstanding triceps.