Everything and the Kitchen Sink

So I was wiping down the kitchen counter last night, and was rinsing the rag in the sink, and then suddenly I felt a rush of water on my feet. Water was coming out of the cabinet underneath the sink, and when I opened up the cabinet, I saw that the pipe that was connected to the sink drain came loose and the black electrical tape that had held it together came undone...I could not believe it! I calmed down by the time I was done mopping up the kitchen floor, but I still could not imagine why anyone would employ such an obviously temporary solution when it is not much more expensive to install a more permanent and durable attachment. It was 11pm, and a bit too late to call the landlord to get someone over to fix it, and because I wasn't planning on doing any heavy-duty cooking for the rest of the evening I figured I'll call the landlord the next day.

Next Day: Got home around 8:30-ish after a long day of classes and studying at the library, and was getting ready to call the landlord, when I noticed that 1) the door to the balcony via the kitchen was closed and locked - we rarely close it and NEVER lock it, and 2) the "Sink is out of order" note I had posted above the sink the night before was now lying face down on the small dining table, and 3) my curiousity got the best of me, so I opened up the cabinet underneath the sink, and lo and behold, the pipe had been reattached, this time with YELLOW tape. So obviously, my lock-happy landlord had been here, perhaps at the beckoning of one of my roommates. I don't know what it is with fixing things with tape. I mean, seriously, it's like using bubble gum to plug up a leak. It is working fine for now, but I'm a little more cautious about using the sink. Maybe he figures this is a good way to get us to mop up the floor every once in a while?