# Laser Pointers & Urine Streams **URL:** \ **Category:** Miscellaneous and Personal Stuff I Must Share\ **Created:** [March 8, 2001, 6:47am UTC](https://boards.straightdope.com/t/laser-pointers-urine-streams/57204 "2001-03-08T06:47:55Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![DaveoRad](https://avatars.discourse-cdn.com/v4/letter/d/bcef8e/32.png) [@DaveoRad](https://boards.straightdope.com/u/DaveoRad)\ **Post date:** [March 8, 2001, 6:47am UTC](https://boards.straightdope.com/t/laser-pointers-urine-streams/57204/1 "2001-03-08T06:47:55Z")
Hey, has anyone else experimented with a laser pointer and discovered the really cool psychedelic patterns that can be projected on a urinal if you shine the beam through your urine stream? (I need a hobby. Quick.) ---
**Author:** ![Palmyra](https://avatars.discourse-cdn.com/v4/letter/p/57b2e6/32.png) [@Palmyra](https://boards.straightdope.com/u/Palmyra)\ **Post date:** [March 8, 2001, 6:54am UTC](https://boards.straightdope.com/t/laser-pointers-urine-streams/57204/2 "2001-03-08T06:54:46Z")
no… but i’m a girl and i pee sitting down so i can’t really get at my urine stream and… you really _do_ need a hobby… ---
**Author:** ![Mamapotomus](https://avatars.discourse-cdn.com/v4/letter/m/94ad74/32.png) [@Mamapotomus](https://boards.straightdope.com/u/Mamapotomus)\ **Post date:** [March 8, 2001, 7:15am UTC](https://boards.straightdope.com/t/laser-pointers-urine-streams/57204/3 "2001-03-08T07:15:53Z")
…why do boys have **all** the fun??? 😉 ---
**Author:** ![Rue\_DeDay](https://avatars.discourse-cdn.com/v4/letter/r/41988e/32.png) [@Rue\_DeDay](https://boards.straightdope.com/u/Rue_DeDay)\ **Post date:** [March 8, 2001, 12:28pm UTC](https://boards.straightdope.com/t/laser-pointers-urine-streams/57204/4 "2001-03-08T12:28:20Z")
> [@](#): > > \*Originally posted by Mamapotomus \* > \*\*…why do boys have **all** the fun??? > 😉 \*\* Through the wonders of technology and the amazing crap on the Internet, boys no longer have [all](http://www.restrooms.org/standing.html) the fun. ---
**Author:** ![Badtz\_Maru](https://avatars.discourse-cdn.com/v4/letter/b/e36b37/32.png) [@Badtz\_Maru](https://boards.straightdope.com/u/Badtz_Maru)\ **Post date:** [March 8, 2001, 12:42pm UTC](https://boards.straightdope.com/t/laser-pointers-urine-streams/57204/5 "2001-03-08T12:42:12Z")
Peeing in a bathroom lit only by a blacklight is fun too. I’ll have to pick up a new pointer and try that too. Woah, what if you combined the two??? I’m taking a full bladder and a laser pointer to Insomnia sometime… ---
**Author:** ![DaveoRad](https://avatars.discourse-cdn.com/v4/letter/d/bcef8e/32.png) [@DaveoRad](https://boards.straightdope.com/u/DaveoRad)\ **Post date:** [March 11, 2001, 6:46am UTC](https://boards.straightdope.com/t/laser-pointers-urine-streams/57204/6 "2001-03-11T06:46:53Z")
> [@](#): > > \*Originally posted by Mamapotomus \* > **…why do boys have all the fun???** Attention, ladies: now you too can enjoy the wonders of a urine stream! All you need is to take a large balloon, fill it with water, and poke a small hole in it. Hey presto – a perfect “urine” stream for your laser pointer! ---
**Author:** ![BornDodgy](https://avatars.discourse-cdn.com/v4/letter/b/e19b73/32.png) [@BornDodgy](https://boards.straightdope.com/u/BornDodgy)\ **Post date:** [March 11, 2001, 11:01am UTC](https://boards.straightdope.com/t/laser-pointers-urine-streams/57204/7 "2001-03-11T11:01:54Z")
I think I dont have to feel guilty when I hijack this thread to ask if anybody else has noticed that the starsign cancer picture doesnt look like it has to do with stars at all… you know… 69 only liing… that s the sign… _scratchs head_ well… I didnt say it was a good hijack, did I? dodgy ---
**Author:** ![Farmer](https://avatars.discourse-cdn.com/v4/letter/f/e495f1/32.png) [@Farmer](https://boards.straightdope.com/u/Farmer)\ **Post date:** [March 11, 2001, 2:04pm UTC](https://boards.straightdope.com/t/laser-pointers-urine-streams/57204/8 "2001-03-11T14:04:35Z")
I think a better way is to shine a laser pointer through an glass ashtray or a shower door, this reflects some of the same psychedelic patterns that your probably seeing. This is also a good way to prevent accidently peeing on yourself or others that are involved. ---
**Author:** ![DaveoRad](https://avatars.discourse-cdn.com/v4/letter/d/bcef8e/32.png) [@DaveoRad](https://boards.straightdope.com/u/DaveoRad)\ **Post date:** [March 13, 2001, 6:23am UTC](https://boards.straightdope.com/t/laser-pointers-urine-streams/57204/9 "2001-03-13T06:23:46Z")
> [@](#): > > \*Originally posted by Farmer \* > **I think a better way is to shine a laser pointer through an glass ashtray or a shower door,** I haven’t tried an ashtray (good idea!), but I have tried a shower door with similar results.