Digispark Keyboard Prunk

// Digispark keyboard prank
#include "DigiKeyboard.h"
int led = 0;
long randNumber;
#define KEY_UP_ARROW 0x52
#define KEY_DOWN_ARROW 0x51
#define KEY_LEFT_ARROW 0x50
#define KEY_RIGHT_ARROW 0x4F
#define KEY_DELETE 76
void setup() {
    randomSeed(analogRead(0));
    pinMode(led, OUTPUT);
    DigiKeyboard.update();
    DigiKeyboard.sendKeyStroke(0);
    DigiKeyboard.delay(3600000);
}
void loop() {
    DigiKeyboard.sendKeyStroke(0);
    randNumber = (int) random(4);
    DigiKeyboard.println(String(randNumber));
    switch (randNumber) {
        case 0: // Play with capslock
            {
            DigiKeyboard.sendKeyStroke(57);
            digitalWrite(led, 1);
            DigiKeyboard.delay((int) random(5000)+10000);
            DigiKeyboard.sendKeyStroke(57);
            digitalWrite(led, 0);
            }
            break;
        case 1: // Minimize all windows
            {
            digitalWrite(led, 1);
            DigiKeyboard.sendKeyStroke(KEY_M, MOD_GUI_LEFT);
            digitalWrite(led, 0);
            }
            break;
        case 2: // Lock screen
            {
            digitalWrite(led, 1);
            DigiKeyboard.sendKeyStroke(KEY_L, MOD_GUI_LEFT);
            digitalWrite(led, 0);
            }
            break;
        case 3: // Minimize current window
            {
            digitalWrite(led, 1);
            DigiKeyboard.sendKeyStroke(KEY_DOWN_ARROW, MOD_GUI_LEFT);
            digitalWrite(led, 0);
            }
            break;
        case 4: // Flip screen
            {
            digitalWrite(led, 1);
            DigiKeyboard.sendKeyStroke(KEY_DOWN_ARROW, MOD_CONTROL_LEFT + MOD_ALT_LEFT);
            digitalWrite(led, 0);
            }
            break;
        default:
        break;
    }
    DigiKeyboard.delay((int) random(60000)+90000);
}