Haemorrhoids are caused by too much straining, which is caused by bad posture during defecation. The closer you're to a squatting position, the less straining you need. Use a footrest to raise your leg (or as I call it: a stool stool, hehehe).
The only downside is that you'll miss it whenever nature calls outside the home.
https://duckduckgo.com/?t=ffab&q=sandpaper+on+a+toilet+roll&...
well, that and taking it up to the cashier. :)
I've had constipation maybe twice in my life.