when i really got into idm and glitch music a way i do things is ill go on youtube or dig through the internet of even record stores looking for really experimental glitch music, alot of japanese artists seem to do this, take a scratched cd then rip it and you get all those glitchy things, or stick whatever into an audio editor and cut some one shots, i never worry about sampling one shots as its not like your blatantly recording a ten second vocal track, but with glitch sounds sometimes to get the right noises to your liking youll have to dig and use one of the available internet video to mp3 converters then stick a few tracks and cut some samples to your liking, im not going to go into any copyright bs on this thread because the whole music industry and a few genres of music were built off the back of a single drum loop, one shots arent really going to cause any guff unless its a melody or a vocal track, drum samples are absolutely fine to sample, no ones going to pay any mind to a quarter of a second.
sampling one shots
Back in the day, the general rule was up to 2 measures of material before you " crossed the line"
IMHO an occasional James Brown "hoooahh!" or using a 909 snare, isn't going to bother anyone....
Record sounds, mutilate them to taste, rinse, and repeat.
Life is good. Go make music. 
yes ive gotten solution to usually when im having writers block ill go into sampling mode where im sampling like tons of things random stuff and then it helps its like kinda the work around to getting burnt out on making stuff, and sometimes you find the best stuff in alot of odd things like kfc commercials from the 1970s really great stuff.
There is a nuance and environmental room character in early recordings that really boosts the aural appreciation of the tone you hear, especially when you compress it and speed it up for modern music integration...... Today's studios record everything so darn dry and sterile, you lose alot of that natural room environmental character...... it's good in some ways, but in other ways, natural room characteristics can be quite a nice addition to the recording
But I digress...
yea like i always wondered when you listened to stuff like pre 1969, i used to have this reel to reel i bought from an antique store for like ten bucks came with some really obscure french radio recordings, like twenty tapes of classic music with a french dj but you could tell this was some old stuff circa 1940s and the reel to reels are another animal entirely, i used to find them more when id go digging in antique stores because reel to reels are pretty rare now i rarely see any of them around when i go to swap meets and stuff but anyways just the character of all this old technology really captured alot of emotion in some of these recordings more so than alot of modern stuff i really dig the solo synth players, that play really obscure tristan chords that can capture like an errie environmental feeling all the early synth stuff that sounds isolated is really great its art in itself if you can find this stuff that hasnt been heard in 50 years then upload it to digital is really a special feeling.