Getting some vibes over the Web here - someone has a touch of ECD (Excessive Compulsive Disorder)
The manifestation first appears when the affected person once again touches the door handle, which they just let go of. At first, apparently benign, this leads to the need to go back and check that it's properly shut. Soon, doubt sets in and the incumbent finds the need to touch the object with more regularity or precision - in order to be sure to set aside the doubt.
In the latter stages, the process requires the object to be touched only in even numbers. Thus, it's no good to touch 1, 3..., 9, 13 times. But evens may suffice. However, when the numbers reach the 16s, it becomes noticeable and the person fears being noticed.
Fear not. The cure lies in first substituting a touch of 16 as 4 lots of 4, wherein a 4 is counted as a 1. Thus 4 touches of 1 will finally equate to 1, yet leaving the sufferer contented.
A worse form that I have observed is, micro-manipulation of objects. Say, the beer glass. So he puts it down. At time of "infection" the put down requires a slight adjustment. Then, at the next sip, the position has to be re-attained. The afflicted enters a spiral of resetting the position in ever decreasing increments, until a sweat appears on the brow. In severe cases, the afflicted may stay up for hours setting the intended position of the glass.
Mind you don't shuffle the glass. And leave that door handle well alone
