Yes, you can purposefully make Android apps crash:

• An unexpected exit caused by an unhandled exception or signal causes an Android app to fail. When an app dies, Android kills the app's process and shows a message to the user.
• To crash an app, go to Settings » App Manager and choose the app you wish to crash. End the procedure will be an option there. If you select that option, your application will crash...
• Apps tend to malfunction when your Wi-Fi or cellular connectivity is slow or inconsistent. Lack of storage capacity on your device is another cause of Android app crashes. This happens when you put too many hefty programmes on your device's internal memory.

Read More: Is there any solution to stop crashing the Android apps?